Reactions of beta-carbonyl-substituted 4H-chromenes and 1H-benzo[f]chromenes with 5-aminopyrazoles

Reactions of beta-carbonyl-substituted 4H-chromenes and 1H-benzo[f]chromenes with 5-aminopyrazoles

A method for the preparation of pyrazolo[1,5-a]pyrimidines containing a 2-hydroxybenzyl or (2-hydroxynaphthalen-1-yl)methyl group in position 6 based on the reaction of beta-carbonyl-substituted 4H-chromenes and their benzo analogs with 5-aminopyrazoles is proposed. A new type of ring-chain tautomer...

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Главные авторы:	Demidov, O. P., Демидов, О. П.
Формат:	Статья
Опубликовано:	Springer 2021
Темы:	5-amino-1H-pyrazoles 1H-benzo[f]chromene beta-carbonyl-substituted chromene 4H-chromene Pyrazolo[1,5-a]pyrimidines Aza-Michael reaction (3+3) cyclocondensation Tautomerism
Online-ссылка:	https://dspace.ncfu.ru/handle/20.500.12258/18459
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