Oxidative cyclocondensation of thio(seleno)-amides and ureas 1. 2-thioxo-4-quinazolone View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

1996-06

AUTHORS

Kh. M. Shakhidoyatov, B. A. Urakov, N. I. Mukarramov, M. A. Ashirmatov, V. P. Bruskov

ABSTRACT

It has been found for the first time that 2-thioxo-4-quinazolone in the presence of acid catalysts in dimethyl sulfoxide is converted to8H,15H-1, 2, 4-thiadiazolo[3, 2-b:5, 4-b′]diquinazoline-8,15-done. The reaction proceeds via oxidative cyclocondensation. The formation of this structure in preference to five other proposed isomers is substantiated using quantum-chemical methods.

PAGES

728-731

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/bf01164875

DOI

http://dx.doi.org/10.1007/bf01164875

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1011862268


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