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

Published monthly
 

Aminolysis of socrose. II. Reaction of certain oligosaccharides and polysaccharides with aqueous ammonia solution

I. Ježo and I. Lužák

Slovak Academy of Sciences, Bratislava

 

Abstract: The title reaction was studied when caried out as described above in the case of sucrose, and in the presence of 0.625% (NH4)3PO4. Pyrazine and iidazole fractions identical with those obtained from sucrose were obtained from the following carbohydrates: (in decreasing order as regards yields): melase of various origins, lactose, cellobiose, hydrolysed starc (with optimal temp. of reaction for all 255〈), starch of various origins, and cellulose (optimal temp. 250°). The dialdehyde of starch(Sloan et al., CA 51, 1633b) yielded under the same conditions only 2,3-dimethylpyrazine (1% yield) and imidazole (4.3% yield) at the optimal temp. 225°; a reaction mechanism, presuming the intermediary formation of erythrose and glyoxal by hydrolysis, is suggested for the formation of these products.

Full paper in Portable Document Format: 174a255.pdf (in Slovak)

 

Chemical Papers 17 (4) 255–264 (1963)

Tuesday, May 28, 2024

IMPACT FACTOR 2021
2.146
SCImago Journal Rank 2021
0.365
SEARCH
Advanced
VOLUMES
European Symposium on Analytical Spectrometry ESAS 2022
© 2024 Chemical Papers