2-Polyfluoroalkylchromones. 11. Synthesis and structures of 5-hydroxy-3-(2-hydroxyaryl)-5-polyfluoroalkyl-Delta(2)-pyrazolines and 3(5)-(2-hydroxyaryl)-5(3)-polyfluoroalkylpyrazoles / Sosnovskikh VY,Barabanov MA,Sizov AY // RUSSIAN CHEMICAL BULLETIN. - 2002. - V. 51, l. 7. - P. 1280-1291.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article; Proceedings Paper

Abstract:

The reaction of 2-hydroxy-2-polyfluoroalkylchroman-4-ones with hydrazine affords 5-hydroxy-3-(2-hydroxyaryl)-5-polyfluoroalkyl-Delta(2)-pyrazolines, whereas 2-polyfluoroalkylchromones under similar conditions produce 3(5)-(2-hydroxyaryl)-5(3)-polyfluoroalkylpyrazoles. 5 - (2-Hydroxyaryl)-1-methyl-3-polyfluoroalkylpyrazoles were synthesized in the reaction with methylhydrazine, and the reaction with phenylhydrazine afforded regioisomeric 3(5)-(2-hydroxyphenyl)-1-phenyl-5(3)-polyfluoroalkylpyrazoles.

Author keywords:

fluorine-containing chromanones and chromones; hydrazine; methyl- and phenylhydrazines; pyrazolines; pyrazoles; isoxazoles; H-1 and C-13 NMR spectroscopy; conformations; regioisomers; tautomers BETA-DIKETONES; INHIBITORS

DOI:

10.1023/A:1020960815497

Web of Science ID:

ISI:000179423500026

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUL
Note	International Conference on RNA as Genomics and Therapeutic Target, NOVOSIBIRSK, RUSSIA, AUG 29-SEP 02, 2001
Publisher	CONSULTANTS BUREAU
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	BETA-DIKETONES; INHIBITORS
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
Number-of-Cited-References	31
Usage-Count-Last-180-days	2
Usage-Count-Since-2013	2
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	618NE