An efficient synthesis of 4-dimethoxyphosphonyl substituted pyrazoles and pyrazoline-5-ones

dc.contributor.author	Khotinen A.
dc.contributor.author	Polozovf A.
dc.date.accessioned	2018-09-17T21:01:57Z
dc.date.available	2018-09-17T21:01:57Z
dc.date.issued	1993
dc.identifier.issn	1042-6507
dc.identifier.uri	https://dspace.kpfu.ru/xmlui/handle/net/134423
dc.description.abstract	2-Dimethoxyphosphonyl-1, 3-dicarbonyl compounds (1a-c) were used for the synthesis of 4-dimethoxyphosphonyl substituted pyrazoles (2a-e) and pyrazoline-5-ones (5a-c). Intermediate hydrazones (3b, c) were also isolated. 5a exists in the OH tautomeric form, whereas 5c-in the NH form. Tautomeric transition from the OH into the NH form was found for 5b at the melting point. © 1993, Taylor & Francis Group, LLC. All rights reserved.
dc.relation.ispartofseries	Phosphorus, Sulfur, and Silicon and the Related Elements
dc.subject	13C-NMR-spectra
dc.subject	hydrazine
dc.subject	pyrazole
dc.subject	pyrazoline-5-one
dc.subject	tautomer
dc.title	An efficient synthesis of 4-dimethoxyphosphonyl substituted pyrazoles and pyrazoline-5-ones
dc.type	Article
dc.relation.ispartofseries-issue	1-4
dc.relation.ispartofseries-volume	83
dc.collection	Публикации сотрудников КФУ
dc.relation.startpage	53
dc.source.id	SCOPUS10426507-1993-83-14-SID21344493355

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Публикации сотрудников КФУ Scopus [24551]
Коллекция содержит публикации сотрудников Казанского федерального (до 2010 года Казанского государственного) университета, проиндексированные в БД Scopus, начиная с 1970г.