ISSN print edition: 0366-6352
ISSN electronic edition: 1336-9075
Registr. No.: MK SR 9/7

Published monthly
 

Author: Kováč

Influence of freezing on physicochemical forms of natural and technogenic radionuclides in Chernozem soil 714 718
Petya Kovacheva and Rumyana Djingova Vol. 68, 5
Physicochemical fractionation of americium, thorium, and uranium in Chernozem soil after sharp temperature change and soil drought 336 341
Petya Kovacheva, Svilen Mitsiev, and Rumyana Djingova Vol. 68, 3
Application of positron emission tomography and 2-[18F]fluoro-2-deoxy-D-glucose for visualization and quantification of solute transport in plant tissues 1463 1473
Denisa Partelová, Jozef Uhrovčík, Juraj Lesný, Miroslav Horník, Pavol Rajec, Peter Kováč, and Stanislav Hostin Vol. 68, 11
Effects of enzymes and hydrocolloids on physical, sensory, and shelf-life properties of wheat bread 292 299
Ľubomír Mikuš, Mária Kováčová, Ladislav Dodok, Alžbeta Medveďová, Lucia Mikušová, and Ernest Šturdík Vol. 67, 3
Stereoselective synthesis of the polar part of mycestericins E and G 527 535
Miroslava Martinková, Jozef Gonda, Alena Uhríková, and Margaréta Kováčvá Vol. 65, 4
Microwave assisted one pot synthesis of 7-substituted 2-(2-oxo-2H-chromen-3-yl)acetic acids as precursors of new anti-tumour compounds 806 811
Silvia Kováčová, Lucia Kováčiková, Margita Lácová, Andrej Boháč, and Marta Sališová Vol. 64, 6
Characterization of mechanochemically synthesized lead selenide 562 567
Marcela Achimovičová, Nina Daneu, Aleksander Rečnik, Juraj Ďurišin, Baláž Peter, Martin Fabián, Jaroslav Kováč, and Alexander Šatka Vol. 63, 5
Interaction Studies of Nonionic Emulsifiers and Carboxymethylstarch and Polymerization of Vinyl Acetate 48 54
I. Capek, S. Janíčková, P. Capek, J. Kováčik, and P. Koštial Vol. 59, 1
Utilization of Simulation Programs for Design of Biological Units for Nitrogen Removal 117 122
J. Derco and A. Kovács Vol. 56, 2
Pertraction of Silver through Bulk Liquid Membranes 423 429
M. Vajda, Š. Schlosser, and K. Kováčová Vol. 54, 6b
Analysis of Chlorinated Phenols in Animal Organs 332 337
M. Veningerová, V. Prachar, Z. Kováčiková, and J. Kovačičová Vol. 54, 5
Excess Molar Volumes in Systems Alkane—1-Chloroalkane 424 427
J. Linek and É. Kovács Vol. 53, 6
Addition-Cyclization Reactions of Hexa-2,4-dienoyl Isothiocyanate with Amines and Sodium Hydrogen Sulfide 260 264
M. Ružinský, M. Dzurilla, P. Kutschy, and V. Kováčik Vol. 53, 4
Stereospecific aminopeptidases in Chelidonium majus L. callus culture 592 592
M. Benesova, S. Blanarikova, P. Kovacs, and M. Psenak Vol. 52, SI
Activity of alpha- and beta-galactosidase in immobilized cells of tomato 589 589
J. Stano, L. Bilisics, K. Neubert, P. Kovacs, D. Kakoniova, and L. Bezakova Vol. 52, SI
Thiobarbituric acid reacting substances and biochemical parameters in umbilical cord plasma 529 530
D. Macekova, G. Kovac, J. Hinst, B. Illek, J. Pereckova, I. Spacek, M. Regendova, and B. Liska Vol. 52, SI
Lactate dehydrogenase isoenzyme activity in blood serum from dairy cows at different production stages 469 470
Aa. Asmare, G. Kovac, P. Reichel, and E. Scurokova Vol. 52, SI
A new set of monoclonal antibodies against the bovine CD9-like cell surface antigen 409 409
J. Tomaskova, R. Dusinsky, P. Kovacikova, and M. Simon Vol. 52, SI
Separation and Quantification of AIN and Al203 Precipitates in Oriented Electrotechnical Steels 198 201
H. Bruncková and F. Kováč Vol. 51, 4
Synthesis, Structure, Fungicidal and Herbicidal Activity of 5-(2,6-Dialkylanilido)carbonylmethyl Esters of N,N-Disubstituted Dithiocarbamic Acid 25 27
V. Konečný, J. Žúžiová, L. Bzdušková, and Š. Kováč Vol. 50, 1
Chemical and Electrochemical Isolation of A1N and MnS Precipitates from Fe—3 % Si Steels 115 121
H. Bruncková and F. Kováč Vol. 49, 3
Determination of Linkage Position in Per-O-methylated Xylooligosaccharides by MIKE and CID Mass Spectra of Ammonia and Methylamine Cluster Ions 422 425
V. Kováčik, J. Hirsch, and V. Pätoprsty Vol. 48, 6
Mass Spectrometric Study of 8-Azaxanthine Derivatives 415 422
V. Kováčik, A. Rybár, and A. Bozóová Vol. 48, 6
Chemometric Elucidation of Methylation Analysis оf Polysaccharides 198 201
M. Ďurindová, P. Jurášek, I. Klbik, and V. Kováčik Vol. 47, 3
Metastable Ion Kinetic Energy and Collision-Induced Dissociation Study of Per-O-acetylated D-Trehaloses under the Conditions of Electron Impact and Chemical Ionization Mass Spectrometry 122 124
V. Pätoprstá, V. Kováčik, and Š. Kučár Vol. 47, 2
Sequential Analysis of Oligosaccharides by Direct Chemical Ionization Mass Spectrometry 410 412
V. Kováčik, N. F. Whittaker, and P. Kováč Vol. 46, 6
Preparation and Physical Properties of Cyanatonickel(II) Complexes with Imidazole Ligands 281 283
A. Mašlejová and I. Kováčik Vol. 46, 5
Study of Acetylated Methyl 2-Deoxy-D-erythro-pentosides by Electron Impact and Chemical Ionization Mass Spectrometry 249 252
V. Kováčik, J. Kozák, and Š. Kučár Vol. 46, 4
Substitution of Halogens on Furan by Hydrazines Stable Derivatives of 5-Hydrazinofuran 38 41
D. Berkeš, E. Marunová, and J. Kováč Vol. 46, 1
Polycrystalline ESR spectra of the [Co(1,3-diaminopropane)3][CuCl5].3H2O complex 477 484
P. Pelikán, M. Valko, I. Kováčik, M. Mazúr, and A. Staško Vol. 44, 4
Correction 432 432
A. Krutošíková, M. Dandárová, V. Konečný, and J. Kováč Vol. 44, 3
Nucleophilic vinyl substitution. Reactions of pyridylvinyl bromides with sulfur and nitrogen nucleophiles 355 361
M. Bencková and J. Kováč Vol. 44, 3
N-substituted 2,6-dialkylanilides 119 130
A. Krutošíková, M. Dandárová, V. Konečný, and J. Kováč Vol. 44, 1
Identification of methyl O-acetyl-O-trifluoroacetyl-β-D-xylopyranosides by gas chromatography and mass spectrometry 685 691
V. Mihálov, E. Petráková, and V. Kováčik Vol. 43, 5
Identification of O-acetyl-O-trifluoroacetyl-1,6-anhydro-β -D-glucopyranoses by gas-chromatography and mass-spectrometry 677 684
V. Mihálov, Š. Kučár, and V. Kováčik Vol. 43, 5
Reactions of substituted 2-(2-furyl)-1,1,2-ethylenetricarbonitriles with primary and secondary-amines 579 588
D. Berkeš and J. Kováč Vol. 43, 4
Bromination of alpha,beta-unsaturated acids of pyridine preparation of 2-bromoethylenes of the pyridine series 439 445
M. Bencková and J. Kováč Vol. 43, 3
Synthesis and reactions of 2-aryloxyfuro[3,2-b]pyrrole and 2-arylthiofurol[3,2-b]pyrrole derivatives 447 455
A. Krutošíková, A. Koreňová, J. Kováč, and M. Frajtová-Chmelová Vol. 43, 3
Preparation of 2-substituted furo[3,2-b]pyrroles and their reactions with dimethyl butynedioate 457 464
A. Koreňová, A. Krutošíková, M. Dandárová, and J. Kováč Vol. 43, 3
Synthesis and reactivity of enamines in pyridine series 51 61
M. Bencková, D. Végh, J. Kováč, and Z. Friedl Vol. 43, 1
Ureas and amides of the 5-(2-nitrophenyl)-2-furyl type 795 800
A. Koreňová, A. Krutošíková, and J. Kováč Vol. 42, 6
1,3-dipolar cyclo-additions of heterocycles. 19. Cyclo-addition of furonitrile oxides to oxygen-containing heterocycles 823 833
E. Jedlovská, Ľ. Fišera, and J. Kováč Vol. 42, 6
 1H and 13C NMR study of the structure of the reaction-product of 4-acetylfuro[3,2-b]pyrrole with dimethyl butynedioate 659 663
M. Dandárová, A. Krutošíková, J. Alfőldi, and J. Kováč Vol. 42, 5
Reactions of substituted N-(5-nitro-2-furfuryl)anilines 665 675
R. Mocelo and J. Kováč Vol. 42, 5
Reactions of 5-azido-2-furaldehyde with 2-substituted anilines 677 682
F. Považanec, J. Kováč, and D. Hesek Vol. 42, 5
Synthesis and pesticidal activity of 2,4-disubstituted o-(haloalkyl)-o-(alkyl, aryl)-(n-alkylamido, n,n-dialkylamido)-o-(3-oxo-2h-pyridazine-5-yl) esters of thiophosphoric acid 415 427
J. Žúžiová, V. Konečný, Š. Kováč, Š. Varkonda, and B. Žúži Vol. 42, 3
Substituted 5-phenoxy-2-furaldehydes and their derivatives 81 88
A. Krutošíková, V. Konečný, M. Dandárová, and J. Kováč Vol. 42, 1
Spectral properties and intramolecular hydrogen-bonds of 2,4-disubstituted and 2,5-disubstituted 3-oxo-2H-pyridazine-5-thiols and 3-oxo-2H-pyridazine-4-thiols 73 80
Š. Kováč, V. Konečný, and V. Knoppová Vol. 42, 1
Furan-derivatives .217. Synthesis and spectral properties of derivatives of 5-cyano-2-furaldehyde 793 802
D. Ilavský, S. Marchalín, J. Kováč, E. Henrybasch, and C. Morvan Vol. 41, 6
Synthesis, structure, and pesticidal activity of 2,4-disubstituted and 2,5-disubstituted 3-oxo-2H-pyridazine-5-thiols and 3-oxo-2H-pyridazine-4-thiols 827 834
V. Konečný and Š. Kováč Vol. 41, 6
Influence of solvents on the reaction of 5-nitro-2-furylvinyl-trimethylammonium bromide with piperidine 593 600
V.V. Kravchenko, A.F. Popov, L.I. Kostenko, A.A. Kotenko, D. Végh, and J. Kováč Vol. 41, 5
Synthesis and spectral properties of 4-(O,O-dialkyl(diaryl)-thiophosphorylhydrazono)-2,3-dichloro(2-chloro-3-ethylthio)-2-butenoic acid alkyl esters 107 112
V. Konečný and Š. Kováč Vol. 41, 1
Synthesis, spectral properties, and hydrogen-bonding of 4-(O,O-dialkyl(diaryl)phosphoryl(thiophosphoryl))hydrazono-2,3-dichloro-2-butenoic acids 813 818
V. Konečný and Š. Kováč Vol. 40, 6
5-Acyloxy-3,4-dichloro-5H-furan-2-ones 659 663
A. Krutošíková, A. Koreňová, J. Kováč, and V. Konečný Vol. 40, 5
Synthesis, spectral properties, and hydrogen-bonds of phosphorylhydrazine and thiophosphorylhydrazines 679 684
V. Konečný and Š. Kováč Vol. 40, 5
Nucleophilic vinyl substitution Synthesis and stereochemistry of new enamino ketones of furan series 665 672
J. Kristofčák, J. Kováč, M. Dandárová, and D. Végh Vol. 40, 5
Vapor-liquid-equilibrium of some binary-systems containing 1,1-dichloroethylene 729 736
A. Kováč, J. Svoboda, and I. Ondruš Vol. 39, 6
Vapor-liquid-equilibrium of some binary-systems containing 1,1,2-trichloroethane 737 742
A. Kováč, J. Svoboda, and I. Ondruš Vol. 39, 6
Furan-derivatives .199. Preparation and nucleophilic-substitution reactions of ethyl-ester of 4-bromo-3-(2-furyl)-2-butenoic acid 769 773
K. Špirková and J. Kováč Vol. 39, 6
Furan-derivatives .204. Synthesis and reactions of 5-(2-nitrophenoxy)-2-furaldehyde 503 511
A. Koreňová, A. Krutošíková, and J. Kováč Vol. 39, 4
Synthesis, spectral properties, and IRH of 2,4,5-trisubstituted 3-oxo-2H-pyridazines 513 526
V. Konečný, Š. Kováč, and Š. Varkonda Vol. 39, 4
Furan derivatives CXCVI. Synthesis and reactions of 3,4-dichlorophenyl-substituted furocondensed derivatives 707 713
A. Krutošíková, J. Kováč, and P. Banák Vol. 38, 5
Synthesis, spectral properties, and pesticidal activity of thiophosphorylsemicarbazides 515 521
V. Konečný, J. Žúžiová, and Š. Kováč Vol. 38, 4
Furan derivatives. CC. Study of the reactions of 2-X-3-(5-Y-2-furyl- and -2-thienyl)acrylonitriles with 4-aminopyridine 425 430
V. Knoppová, M. Kríž, and J. Kováč Vol. 38, 3
Synthesis, spectral properties, and pesticidal activity of 4,5-dichloro-2-R-3-oxo-2H-pyridazines 239 246
V. Konečný, Š. Kováč, and Š. Varkonda Vol. 38, 2
1,3-Dipolar cycloadditions of heterocycles. X. Reactions of C-benzoyl-N-phenylnitrone with dihydrothiophene, N-methylpyrrole, thiophene, and benzothiophene 819 825
Ľ. Fišera, J. Kováč, J. Patúš, and P. Meško Vol. 37, 6
Synthesis and spectral properties of diazonium pyridazinones 827 830
V. Konečný and Š. Kováč Vol. 37, 6
Structure of the reaction product of α,β-dichloro-β-formylacrylic acid with phenylhydrazinium chloride 395 398
V. Konečný and Š. Kováč Vol. 37, 3
Thermal degradation of basic alkoxy carbanilates in a gas chromatograph 209 212
M. Štefek, L. Beneš, and V. Kováčik Vol. 37, 2
Reaction gas chromatography of basic alkoxy carbanilates with trimethylanilinium hydroxide 213 216
M. Štefek, L. Beneš, and V. Kováčik Vol. 37, 2
Synthesis and properties of α-bromonarceine imide and its derivatives 559 569
B. Proksa, M. Bobáľ, and Š. Kováč Vol. 36, 4
Furan derivatives. 176. Synthesis and properties of 4-[2-(5-X-2-furyl)vinylene]benzoic acids and their methyl esters 411 417
V. Knoppová, A. Beňo, and J. Kováč Vol. 36, 3
 Synthesis, spectral properties, and insecticidal, acaricidal,  and ovicidal activities of some O-(2-R4-5-R3-3-oxo-2H-pyridazin-4-yl)phosphates and phosphorothioates 259 266
V. Konečný, Š. Kováč, and Š. Varkonda Vol. 36, 2
Chemical synthesis of xylotriose (4-O-(4-O-β-D-xylopyranosyl-β-D-xylopyranosyl)-D-xylopyranose) 125 131
J. Hirsch and P. Kováč Vol. 36, 1
Reactions of arenecarbonyl isothiocyanates with hydrazones 707 712
M. Uher, M. Bošanský, Š. Kováč, and O. Rajniaková Vol. 35, 5
Synthesis of 2,4-di-O-β-D-xylopyranosyl-D-xylopyranose 699 705
E. Petráková and P. Kováč Vol. 35, 5
13C NMR spectra of isomeric D-xylobioses 551 566
E. Petráková and P. Kováč Vol. 35, 4
Phosphorylated isothioureas. V. Preparation and properties of 3-phosphorylated and 3-thiophosphorylated 1,1,2-trisubstituted isothioureas 373 387
Ľ. Kuruc, V. Konečný, Š. Kováč, and Š. Truchlík Vol. 35, 3
Preparation of intermediates for the sequential synthesis of xylodextrins 389 395
P. Kováč, A. Čuláková, E. Petráková, and J. Hirsch Vol. 35, 3
Synthesis and reactions of uronic acid derivatives. XXI. Controlled esterification of oligo-D-galactosiduronic acids with diazomethane 79 83
O. Markovič, P. Kováč, and A. Slezárik Vol. 35, 1
 1,3-Dipolar cycloadditions of heterocycles. V. Reaction of C-acetyl-N-phenylnitrilimine with furan derivatives 93 104
Ľ. Fišera, J. Kováč, J. Leško, and V. Šmahovský Vol. 35, 1
Cathodic reduction of substituted 5-phenyl-2-furaldehydes in dimethylformamide 788 792
J. Černák, F. Tomanovič, A. Staško, A. Krutošíková, and J. Kováč Vol. 34, 6
Studies on circular dichroism. XXI. Aldooligouronic acid derivatives 793 799
T. Sticzay, S. Bystrický, J. Hirsch, and P. Kováč Vol. 34, 6
Infrared spectra of heterocumulenes. VIII. Nature of the νas(NCS) complex band of aromatic isothiocyanates 683 687
Š. Stankovský and Š. Kováč Vol. 34, 5
Mass spectrometry of basic alkoxy carbanilates having local anesthetic properties 688 694
M. Štefek, L. Beneš, and V. Kováčik Vol. 34, 5
Phosphorylated isothioureas. IV. Preparation and properties of N-phosphorylated and N-thiophosphorylated N',S-substituted isothioureas 668 678
Ľ. Kuruc, V. Konečný, Š. Kováč, Š. Truchlík, and M. Kurucová Vol. 34, 5
Substitution of hydrogen by deuterium hindering the biochemical dehydrogenation of alditols in the sense of the Bertrand-Hudson rule 695 699
Ľ. Stankovič, V. Bílik, L. Petruš, and V. Kováčik Vol. 34, 5
Synthesis of 2-O-β-D-xylopyranosyl-D-xylose 537 542
P. Kováč and E. Petráková Vol. 34, 4
Structure elucidation of new N-aminoacetyl-o-alkoxymethylanilide type local anesthetics by mass spectrometry 543 549
M. Štefek, L. Beneš, and V. Kováčik Vol. 34, 4
Furan derivatives. CLI. Synthesis of 2-Y-3-(5-methylthio- and 5-methylsulfonyl-2-furyl)acrylonitriles and kinetics of their reaction with nucleophilic reagents 556 560
V. Knoppová, R. Kada, and J. Kováč Vol. 34, 4
Furan derivatives. CLIV. Synthesis of 5-nitrofuran type cyclopropanes by a reaction of diazomethane with α,β-unsaturated sulfones 394 398
A. Jurášek, D. Polakovičová, M. Dandárová, and J. Kováč Vol. 34, 3
Methylthiomethyl ethers of methyl α-L-rhamnopyranoside 223 227
R. Toman, V. Kováčik, and M. Kubačková Vol. 34, 2
Alternative syntheses of methylated sugars. XXII. Synthesis of methyl β-xylotrioside 234 240
P. Kováč Vol. 34, 2
Comparison of redox transformations in platinum(IV) and copper(II) complexes with thiourea as ligand 179 183
J. Kováčová and J. Gažo Vol. 34, 2
Synthesis of models representing the β-ether type linkage between lignin and hemicelluloses 136 143
R. Brežný and P. Kováč Vol. 34, 1
Alternative syntheses of methylated sugars. XVIII. Synthesis of methyl 2,4-di-O-acetyl-β-D-xylopyranoside 785 791
P. Kováč and J. Alföldi Vol. 33, 6
Furan derivatives. CXXXV. Anhydrides of 3-(5-nitro-2-furyl)acrylic acid as starting materials for the synthesis of 1-(5-nitro-2-furyl)-2-(1,3,4-oxadiazol-2-yl)ethenes 798 802
F. Považanec and J. Kováč Vol. 33, 6
Phosphorylated isothioureas. III. Preparation and properties of phosphorylated isothioureas 803 811
Ľ. Kuruc, Š. Kováč, Š. Truchlík, V. Konečný, and J. Šustek Vol. 33, 6
Furan derivatives. CXX. Synthesis and properties of 5-nitro-2-furylbenzyl sulfones 528 532
R. Kada, V. Knoppová, A. Jurášek, J. Kováč, and Ľ. Janda Vol. 33, 4
Improvements in the synthesis of xylobiose (4-O-β-D-xylopyranosyl-D-xylopyranose) 365 370
P. Kováč Vol. 33, 3
Mass spectrometry of uronic acid derivatives. XIII. Effect of some C-1 substituents upon the mass spectral fragmentation of methyl 2,3,4-tri-O-acetylhexopyranuronates 377 386
V. Mihalov, V. Kováčik, and P. Kováč Vol. 33, 3
Dissociation constants of D-galacturonic and D-glucuronic acid and their O-methyl derivatives 478 485
R. Kohn and P. Kováč Vol. 32, 4
Spectral properties and thione-thiole tautomerism of benzothiazole, benzoxazole, and benzimidazole derivatives 486 492
M. Uher, Š. Kováč, A. Martvoň, and M. Ježek Vol. 32, 4
Alternative syntheses of methylated sugars. XV. Chemical synthesis of methyl β-xylobioside 514 518
P. Kováč, J. Hirsch, and V. Kováčik Vol. 32, 4
Alternative syntheses of methylated sugars. XVI. Synthesis of methyl 2,3-di-O-acetyl-β-D-xylopyranoside 519 523
P. Kováč and J. Alföldi Vol. 32, 4
Phosphorylated isothioureas. I. Preparation and properties of N-(O,O-dialkylthiophosphoryl)-S-alkyl substituted isothioureas 524 541
L. Kuruc, Š. Truchlík, and Š. Kováč Vol. 32, 4
Phosphorylated isothioureas. II. Preparation and properties of N-(O,O-dialkyl and -diphenylphosphoryl)-S-alkyl substituted isothioureas 542 558
L. Kuruc, V. Konečný, Š. Kováč, and Š. Truchlík Vol. 32, 4
Synthesis and reactions of uronic acid derivatives. XVII. Synthesis of methyl 2-O-(methyl 4-O-methyl-α- and β-D-glucopyranosyluronate)-β-D-xylopyranoside 501 513
P. Kováč and R. Palovcik Vol. 32, 4
Furan derivatives. CVI. Infrared, ultraviolet, and Raman spectra of substituted 5-phenyl-2-furonitriles 392 396
F. Považanec, J. Kováč, A. Piklerová, and Š. Kováč Vol. 32, 3
Furan derivatives. CVII. Stereochemistry of substituted β-(2-furyl)vinyl cyanides 397 401
F. Považanec, J. Kováč, and M. Dandárová Vol. 32, 3
Furan derivatives. CI. Nitration of methyl 2-cyano-3-R-3-(2-furyl)acrylates and some properties of their nitro derivatives 378 385
M. Černayová, J. Kováč, M. Dandárová, P. Foltínová, and L. Ebringer Vol. 32, 3
Furan derivatives. CIII. Nitration of methyl 3-(5-nitro-2-furyl)acrylate 386 391
J. Kováč and D. Végh Vol. 32, 3
Mass spectrometry of uronic acid derivatives. X. Identification of methyl (methyl O-methylhexopyranosid)uronates by mass spectrometry 258 266
V. Kováčik, V. Mihalov, and P. Kováč Vol. 32, 2
Furan derivatives. IC. Role of acetic anhydride in nitration of 3-(2-furyl)acrylic acid 267 275
J. Kováč and F. Považanec Vol. 32, 2
Alternative synthesis of methylated sugars. XIV. Synthesis of methyl 3,4-di-O-acetyl-β-D-xylopyranoside 98 105
P. Kováč and R. Palovčík Vol. 31, 1
Synthesis and reactions of uronic acid derivatives. XII. Synthesis of methyl[methyl 2-0-(2,3,4,6-tetra-0-methyl-β-D-glucopyranosyl)-3,4-di-0-methyl-α-D-galactopyranosid]uronate, a fully methylated β-D-1 → 2-linked pseudoaldobiuronic acid 674 681
J. Hirsch, P. Kováč, V. Kováčik, and V. Mihálov Vol. 30, 5
Furan derivatives. LXXV. Reaction of diazoaminobenzene derivatives with Lewis acids and isopentyl nitrite in furan and thiophene 480 483
Ľ. Fišera, J. Kováč, and B. Hasová Vol. 30, 4
Furan derivatives. LXXX. Synthesis and properties of substituted furfurylideneoxindoles 484 492
J. Kováč and J. Štetinová Vol. 30, 4
Furan derivatives. LXXXII. Effect of alkyl and aryl on physical and biological properties of alkyl 2-(5-nitrofuryl) and aryl 2-(5-nitrofuryl) ketones 493 498
M. Černayová, J. Kováč, P. Foltínová, and L. Ebringer Vol. 30, 4
Furan derivatives. LXXXV. Relative reactivity of furan and thiophene upon arylation with diazoaminobenzene and isopentyl nitrite 499 501
Ľ. Fišera, J. Kováč, and E. Komanová Vol. 30, 4
Furan derivatives. LXXXVII. The synthesis and ultraviolet spectra of 5-(4-X-phenylsulfonyl)-2-furaldehydes and 2-cyano-3-[5-(4-X-phenylsulfonyl)-2-furyl]acrylonitriles 502 507
R. Kada and J. Kováč Vol. 30, 4
Furan derivatives. LXXXIX. Synthesis and properties of α,β-unsaturated sulfones of the arylfuran series 508 513
A. Jurášek, J. Kováč, R. Kada, and J. Nemlahová Vol. 30, 4
Separation of O-acetyl-O-methyl-D-glucononitriles by gas chromatography 355 358
D. Anderle and P. Kováč Vol. 30, 3
Furan derivatives. LXXIII. Synthesis and properties of O-(R-carbamoyl)-5-(X-phenyl)-2-furaldehyde oximes 703 708
E. Jedlovská, J. Kováč, A. Piklerová, and V. Konečný Vol. 29, 5
Alternative syntheses of methylated sugars. XIII. Unambiguous synthesis of methyl 2,4-di-O-methyl-α-D-galactopyranoside and methyl (methyl 2,4-di-O-methyl-α-D-galactopyranosid)uronate 544 551
P. Kováč and R. Brežný Vol. 29, 4
Furan derivatives. LXV. Preparation and ultraviolet spectra of 5-arylthio- and 5-heteroarylthio-2-furaldehydes 402 407
R. Kada and J. Kováč Vol. 29, 3
Furan derivatives. XLVI. Infrared spectra of substituted 2-furyl cyanides 408 410
F. Považanec, A. Piklerová, J. Kováč, and Š. Kováč Vol. 29, 3
Hydrogen bonding in phenols. X. The nuclear magnetic resonance data of hydrogen bonds of 2-hydroxydiphenylmethane, 2-hydroxydiphenyl ether, sulfide, and selenide 392 396
A. Kanala, E. Solčániová, and Š. Kováč Vol. 29, 3
Conformational and configurational studies on diastereoisomeric methyl (methyl 3,4-O-benzylidene-α- and -β-D-galactopyranosid)uronates 397 401
C. Peciar, R. Palovčík, J. Alföldi, T. Sticzay, and P. Kováč Vol. 29, 3
Furan derivatives. LXXII. Synthesis and some properties of 1-(5-nitro-2-furyl)-2-(5-aryl-2-furyl)ethylenes 234 239
A. Jurášek, J. Kováč, and J. Prousek Vol. 29, 2
Hydrogen bonding in phenols. IX. Synthesis of the OH ... π intramolecular hydrogen bonding of alkyl-substituted 2-hydroxydiphenylmethanes 215 218
A. Kanala and Š. Kováč Vol. 29, 2
Synthesis and reactions of uronic acid derivatives. IV. Unambiguous synthesis of methyl (methyl α- and β-D-glucopyranosid)uronate 820 832
P. Kováč, J. Alföldi, and M. Košík Vol. 28, 6
Synthesis and reactions of uronic acid derivatives. V. Simple, unambiguous syntheses of methyl (methyl α-D-galactopyranosid)uronate 2-, 3-, and 4-methyl ethers 833 839
J. Hirsch, P. Kováč, and V. Kováčik Vol. 28, 6
2-(2-Hydroxyphenyl)benzotriazoles. II. Electrophilic substitution reactions on the molecule of 2-(2-hydroxy-5-methylphenyl)benzotriazole and ultraviolet spectra of the products 680 685
J. Běluša, J. Mazánková, V. Kováčik, E. Rabušic, and M. Potáček Vol. 28, 5
Derivatives of benzimidazole. IX. Hydrates of 5-aminobenzimidazoles 391 395
R. Kada, A. Jurášek, J. Kováč, and P. Králik Vol. 28, 3
Furan derivatives. LV. Preparation of 5-aryl-2-furfuryl phenyl and 5-aryl-2-furfuryl 4-tolyl sulfones 414 417
A. Krutošíková and J. Kováč Vol. 28, 3
Furan derivatives. LVIII. Transfer of a substituent effect through the furan-benzene system. Alkaline hydrolysis of methyl esters of 4-(5-X-2-furyl)benzoic acids 386 390
Ľ. Fišera, J. Kováč, M. Lucký, and J. Surá Vol. 28, 3
Infrared spectra of heterocumulenes. II. Infrared spectral data of some ketenimines 234 237
Š. Stankovský and Š. Kováč Vol. 28, 2
Infrared spectra of heterocumulenes. VI. Characteristic wave numbers and intensities of the bands of isocyanates, isothiocyanates, and isoselenocyanates 247 251
Š. Stankovsky and Š. Kováč Vol. 28, 2
Infrared spectra of heterocumulenes. I. Influence of substituents on the infrared Influence of substituents on the infrared spectral bands of νas(NCN) of some aromatic carbodiimides 230 233
Š. Stankovský and Š. Kováč Vol. 28, 2
Infrared spectra of heterocumulenes. III. Vibrational wave numbers and integrated absorption intensities of the diazo group of some diphenyldiazomethanes 238 242
Š. Stankovsky and Š. Kováč Vol. 28, 2
Infrared spectra of heterocumulenes. IV. Influence of substituents on the νas(NNN) bands of some substituted phenyl azides 243 246
Š. Stankovsky and Š. Kováč Vol. 28, 2
Furan derivatives. II. Synthesis and some properties of α,β-unsaturated sulfones of the 5-nitrofuran series 262 269
A. Jurášek, J. Kováč, and J. Abrahám Vol. 28, 2
Furylidene derivatives of carbohydrates. II. Mass spectrometric fragmentation of some monosaccharide furylidene acetals and its analytical applications 270 276
V. Kováčik, P. Kováč, M. Košík, and V. Demianová Vol. 28, 2
Easy route to 2-O-substituted D-xylose derivatives 816 820
J. Hirsch and P. Kováč Vol. 27, 6
Mass spectrometric fragmentation of methyl 2-O-methyl-, 4-O-methyl-, and 2,4-di-O-methyl-α-D-glucopyranoside and its application to some synthetic problems 662 667
V. Kováčik and P. Kováč Vol. 27, 5
Alternative syntheses of methylated sugars. XI. 2,4-Di-O-methyl- and 3,4-di-O-methyl-D-xylopyranose 668 675
P. Kováč and J. Hirsch Vol. 27, 5
Isolation and identification of 4-O-β-D-xylopyranosyl-L-arabinopyranose from peach gum polysaccharide. I 688 691
J. Rosík, J. Kubala, A. Kardošová, and V. Kováčik Vol. 27, 5
Thiophene derivatives. II. α,β-Unsaturated ketones of phenylthiophene series 512 520
J. Kováč, Ľ. Fišera, and R. Frimm Vol. 27, 4
Thiophene derivatives. III. Preparation and properties of some 3,5-disubstituted rhodanines 521 524
V. Knoppová, Ľ. Fišera, and J. Kováč Vol. 27, 4
Alternative syntheses of methylated sugars. X. Methyl pyranosides of 2-O-methyl-D-glucose 415 420
P. Kováč and Ž. Longauerová Vol. 27, 3
Conformation of 1,2-isopropylidene derivatives of α-D-glucopyranose 90 93
C. Peciar, J. Alföldi, R. Palovčík, and P. Kováč Vol. 27, 1
Furan derivatives. XXXVI. Chromatographic determination of some phenylfuran derivatives 112 113
E. Komanová, A. Krutošíková, and J. Kováč Vol. 27, 1
Furan derivatives. XXXVII. Preparation of sulfides and sulfones in the furan and arylfuran series 114 118
R. Frimm, M. Uher, J. Kováč, and A. Krutošíková Vol. 27, 1
Furan derivatives. XXXIX. Isomerization of substituted 5-phenyl-2-furfurylthiocyanates to the corresponding isothiocyanates 119 121
A. Krutošíková, J. Kováč, A. Piklerová, and R. Frimm Vol. 27, 1
Furan derivatives. XXXI. α,β-Unsaturated ketones of the phenylfuran series 101 106
R. Frimm, J. Kováč, and A. Krutošíková Vol. 27, 1
Furan derivatives. XXXV. Preparation of substituted 5-phenyl-2-furfuryl bromides, isothiocyanates, and thiocyanates 107 111
A. Krutošíková, J. Kováč, and R. Frimm Vol. 27, 1
Furan Derivatives. XXX. Preparation of Substituted 5-Phenyl-2-furfuryl Alcohols 551 556
R. Frimm, A. Krutošíiková, and J. Kováč Vol. 26, 6
 Biosynthesis of Alkaloids. XXVIII. L-Phenylalanine:2-0xoglutarate Aminotransferase from Lobelia inflata L. Plants 360 366
H. Šmogrovičová, A. Jindra, and P. Kovács Vol. 26, 4
 Enzymes in Metabolism of Amino Acids. VII.Phenylalanine Ammonia-Lyase in Maize (Zea mays L.) 367 371
P. Nemec, M. Pšenak, P. Kovács, and A. Jindra Vol. 26, 4
Alternative Syntheses of Methylated Sugars. VI.* 3,4-Di-O-methyl- and 4,6-Di-O-methyl-D-glucopyranose 179 182
P. Kováč and Ž. Longauerová Vol. 26, 2
Hydrogen bonding in phenols. VII. Synthesis and intermolecular hydrogen bonds of 2-hydroxy-2',4'-disubstituted stilbenes 173 178
E. Solčániová, Š. Kováč, and M. Rendošová Vol. 26, 2
Alternative Syntheses of Methylated Sugars. V. Methyl Furanosides of 6-0- and 2,6-Di-O-methyl-D-glucose 71 75
P. Kováč and M. Petríková Vol. 26, 1
Alternative Syntheses of Methylated Sugars. IV. Methyl Furanosides of 5-0-, 2,5-Di-O-, 3,5-Di-O- and 2,3,5-Tri-O-methyl-D-xylose 460 466
P. Kováč Vol. 25, 6
Furan derivatives. XXIX. Polymorphism of 3-(5-Nitro-2-furyl)acrylic Acid 300 303
J. Kováč and J. Garaj Vol. 25, 4
Furan Derivatives. XXVII. Synthesis and Absorption Spectra of Methyl-2-cyano-3-[5-(X-phenyl)-2-furyl]acrylates 142 146
A. Krutošíková, J. Kováč, R. Frimm, Š. Kováč, and T. Sticzay Vol. 25, 2
Furan Derivatives. XXVIII. Synthesis and Absorption Spectra of 2-(2-Furyl)- and 2-Phenyl-3-[5-(X-phenyl)-2-furyl]acrylonitriles 147 152
A. Krutošíková, J. Kováč, R. Frimm, Š. Kováč, and T. Sticzay Vol. 25, 2
Furan Derivatives. XXII. Identification of Some By-products from Nitration of 3-(2-Furyl)acrylic Acid 63 68
J. Kováč, E. Komanová, and F. Považanec Vol. 25, 1
Alternative Syntheses of Methylated Sugars. II. 3,4,6-Tri-O-methyl-D-glucopyranose 218 221
P. Kováč Vol. 24, 3
Mass Spectrometry of Some Unsaturated Monosaccharides arid Their Peracetyl Derivatives 52 58
V. Kováčik, V. Bílik, and S. Kučár Vol. 24, 1
Hydrogen bonding in phenols. IV. Intramolecular OH...π hydrogen bonds of some alkyl derivatives of dihydroxydiphenylmethane, -sulfide, -disulfide, and -selenide 687 691
E. Solčániová and Š. Kováč Vol. 23, 9
Furan derivatives. XX. Preparation and absorption spectra of [5-(nitrophenyl)-2-furfurylidene]pyridinecarbonylhydrazones 606 610
R. Frimm and Š. Kováč Vol. 23, 8
Hydroxybenzophenone behavior in nonaqueous titrations 377 381
V. Kapišinská and Š. Kováč Vol. 23, 5
Isothiocyanates and their synthetic constituents. III. Synthesis and structural study of substituted cinnamoyl isothiocyanates 173 180
P. Kristián, M. Dzurilla, and Š. Kováč Vol. 23, 3
Chlorothioureacopper(II) complexes in nonaqueous solutions 81 93
Erzsebet Horváth, J. Kováčova, and Ján Gažo Vol. 23, 2
Furan Derivatives. XXIII. Synthesis and Absorption Spectra of 5-(Nitrophenyl)-2-furaldehyde Derivatives 916 922
R. Frimm, Š. Kováč, and S. Hillers Vol. 23, 11-12
Redox Reactions of Some Copper (N) Complexes with Thiourea 15 26
J. Kováčová, E. Horváth, and J . Gažo Vol. 23, 1
Furan derivatives. XII. Preparation and absorption spectra of [5-(2-nitrophenyl)-2-furfurylidene]benzoylhydrazones 447 451
R. Frimm, Š. Kováč, J. Kováč, and K. Bencze Vol. 22, 6
Isothiocyanates. XXII. Synthesis of mono- and diisothiocyanate derivatives of diphenyl sulfide, diphenyl sulfoxide, and diphenyl sulfone 354 360
M. Uher, K. Antoš, and Š. Kováč Vol. 22, 5
Furan derivatives. XI. Synthesis and absorption spectra of benzoic acid [5-(3-nitrophenyl)-2-furfurylidene]- and [5-(4-nitrophenyl)-2-furfurylidene] hydrazides 361 367
R. Frimm, Š. Kováč, J. Kováč, and K. Bencze Vol. 22, 5
Hemicelluloses from twigs of the white willow (Salix alba). III. Wood xylans 198 205
P. Kováč, F. Rendoš, G. N. Pershina, and E. Pavlovová Vol. 22, 3
On furan derivatives. X. Separation of nitrofuran derivatives by thin-layer chromatography 230 232
E. Komanová, J. Kováč, and A. Kurtošíková Vol. 22, 3
On furan derivatives. IX. 5-Substituted furfuryl idenaminoethyl derivatives of furan 225 229
P. Krkoška and J. Kováč Vol. 22, 3
Derivatives of ferrocene. XVI. Evidence of formation of ferrocene with an α,α'-dioxopentamethylene, or pentamethylene heteroannular chain bridging 501 506
M. Furdík, P. Elečko, and Š. Kováč Vol. 21, 7
Hemicelluloses in the young twigs of Salix alba. II. Isolation and characterization of the coarse hemicellulose fractions from the bark 87 91
P. Kováč and F. Rendoš Vol. 21, 1-2
Hemicelluloses from the young twigs of white willow (Salix alba). I. Isolation and characterization of the rough fractions of the wood hemicelluloses 862 869
P. Kováč and F. Rendoš Vol. 20, 11
Derivatives of ferrocenes. XI. Synthesis of halo compounds derived from acryloylferrocenes 371 378
M. Furdík, P. Elečko, and Š. Kováč Vol. 19, 5
2,5-Disubstituted furan derivatives. III. Rearrangement of furfuryl thiocyanates into isothiocyanates 840 845
A. Jurášek and J. Kováč Vol. 19, 11
2,5-Disubstituted furan derivatives. I. Preparation and infrared spectra of esters of 5-chloromethylpyromucic acid 676 681
A. Jurášek, Š. Kováč, and J. Kováč Vol. 18, 9
2,5-Disubstituted furan derivatives. II. Preparation and infrared spectra of the esters of 5-thiocyanatomethylpyromucic acid 682 687
A. Jurášek, Š. Kováč, and J. Kováč Vol. 18, 9
The sulfonation of furfural diethyl acetal and furfural diacetate 214 217
A. Jurášek, J. Kováč, R. Kada, and R. Frim Vol. 18, 3
Isothiocyanates. XIII. The preparation and infrared absorption spectra of m- and p-alkoxycarbonylphenyl isothiocyanates 81 89
P. Kristián, Š. Kováč, K. Antoš, and B. Tománek Vol. 18, 2
The isolation of citrinin from Penicillium notatum 128 139
V. Betina, P. Nemec, M. Kutková, J. Balán, and Š. Kováč Vol. 18, 2
Hydrogen bridges and infrared absorption spectra of alkoxy esters of salicylic acid 475 481
Š. Kováč Vol. 17, 7
The determination of pyrocatechol oxidase activity 207 210
P. Kovács Vol. 17, 3
Isothiocyanates. XII. Preparation and infrared spectra of m- and p-acyloxyphenyl isothiocyanates 747 756
P. Kristián, J. Antoš, and Š. Kováč Vol. 17, 10-11
Polycondensation of aromatic isothiocyanates 542 552
P. Kristián, Š. Kováč, K. Antoš, and A. Hulka Vol. 16, 7
The structure of o-aminoazo compounds 187 199
K. Antoš and Š. Kováč Vol. 16, 3
The preparation of alkyl esters of cis,cis-Δ9,12-octadecadienoic acid and cis,cis,cis-Δ9,12,15-octadecatrienoic acid. I 82 88
Š. Kováč Vol. 16, 1-2
The preparation of alkyl esters of cis,cis-Δ9,12-octadecadienoic acid and cis,cis,cis-Δ9,12,15-octadecatrienoic acid. II. 89 95
Š. Kováč Vol. 16, 1-2
Isomerization of oleic and linoleic acids at various reaction conditions determined by chromatography and by infrared spectrophotometer 504 515
E. Komanová, V. Koman, and Š. Kováč Vol. 15, 7
Infrared absorption spectra of esters of trans-9-octadecenoic (elaidic) acid 441 449
V. Koman, Š. Kováč, and E. Komanová Vol. 15, 6
The effect of the symmetry of esters of trans-9-octadecenoic (elaidic) acid on the height of the infrared absorption band at 970 cm-1 450 455
Š. Kováč, V. Koman, and E. Komanová Vol. 15, 6
Preparation of pure calcium phytate 143 147
J. Kováč Vol. 15, 2
Identification of antibiotic S-82 843 847
V. Betina, P. Nemec, J. Balan, and Š. Kováč Vol. 15, 11-12
Precipitation of phytic acid salts with calcium hydroxide 631 645
J. Kováč Vol. 14, 9
Polymerization of vinylidene chloride in the presence of solvents 117 123
A. Hrivík, M. Lazár, and Š. Kováč Vol. 13, 2
A simple method of automatic titration in aquametric determination 432 434
J. Kováč Vol. 11, 7
Adsorption of vapor of trichloroethylene on active carbon 319 323
Š. Kováč and P. Králik Vol. 11, 6
Use of the polarographic method in the determination of isomers and derivatives of O,O-diethyl O-(p-nitrophenyl) thiophosphates after their separation by paper chromatography 162 167
J. Kováč Vol. 11, 3
The determination of higher fatty acids in biological material 522 524
T. R. Niederland, P. K. Kovács, R. J. Dzúrik, and L. Macho Vol. 10, 8
The determination of 2,3,5,6-tetrachloronitrobenzene in technical pure product by polarographic analysis 430 435
J. Kováč Vol. 10, 7
The determination of total phospholipides 310 313
T. R. Niederland, R. J. Dzúrik, P. K. Kovács, and J. Machová-Karfíková Vol. 10, 5
Polarographic determination of O,O-dialkyl hydroxy-ethylphosphonate derived from chloral 222 226
J. Kováč Vol. 10, 4
Využitie termochromických vlastností Ag2[HgJ4] na zviditeľnenie ultrazvuku 306 309
J. Tölgyessy and P. Kovács Vol. 9, 5
Polarographic determination of 5,5-dimethyldihydroresorcinol dimethylcarbamate 162 164
J. Kováč Vol. 9, 3
Polarographic determination of O,O-diethyl O-p-nitrophenyl thiophosphate and O-ethyl di(O-p-nitrophenyl) thiophosphate in technical parathion 590 595
J. Kováč Vol. 8, 9
Polarographic determination of warfarin 342 345
J. Kováč Vol. 8, 6
Polarographic determination of O,O-diethyl O-(4-methyl-7-coumarinyl) thiophosphate 272 288
J. Kováč Vol. 8, 5
The preparation of monoalkyl ether diethylene glycol esters and monoalkyl ether triethylene glycol esters of salicylic and 4-nitrosalicylic acids. I 659 675
Š. Kováč Vol. 7, 10

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