Synthesis and properties of new benzo[4,5]thiazolo[3,2-a]pyrimidine derivatives

Autor:	A. S. Grigoryan, A. A. Harutyunyan, A. G. Aivazyan, R. V. Paronikyan, S. G. Chishmarityan, Rafael Tamazyan, G. A. Panosyan, R. S. Sukasyan, H. M. Stepanyan
Rok vydání:	2015
Předmět:	chemistry.chemical_compound chemistry Derivative (finance) Pyrimidine Sulfanyl Organic Chemistry Organic chemistry Tautomer Formylation
Zdroj:	Russian Journal of Organic Chemistry. 51:711-714
ISSN:	1608-3393 1070-4280
DOI:	10.1134/s107042801505022x
Popis:	Heating a mixture of substituted malonic esters and 6-methoxy-1,3-benzothiazolyl-2-amine afforded new derivatives of benzo[4,5]thiazolo[3,2-a]pyrimidine, 3-substituted 2-hydroxy-4H-benzo[4,5]-thiazolo[3,2-a]pyrimidine-4-ones. The choice between the possible tautomers was carried out basing on the X-ray diffraction analysis of 3-formyl-2-chloro derivative synthesized by formylation of unsubstituted heterocycle by Vilsmeier reaction.
Databáze:	OpenAIRE
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