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Amidinoyl Isothiocyanates in the Synthesis of Condensed Quinazolines Preparation of 3-Aryl-9-chloro-5-morpholino[1,2,4]triazolo-[4,3-c]quinazolines and Their [1,5-c] Isomers

K. Špirková, J. Horňaček, and Š. Stankovský

Department of Organic Chemistry, Faculty of Chemical Technology, Slovak Technical University, SK-812 37 Bratislava

 

Abstract: Some 3-aryl-9-chloro-5-morpholino[1,2,4]triazolo[4,3-c]quinazolines were prepared by oxidative cyclization of corresponding arylhydrazones. The isomerization of these condensed [1,2,4]triazolo[4,3-c] derivatives to the [1,5-c] isomers was observed. The IR and 1H  NMR spectra of final products are presented.

Full paper in Portable Document Format: 476a382.pdf

 

Chemical Papers 47 (6) 382–385 (1993)

Wednesday, May 12, 2021

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