Synthesis and reactivity of 2-polyfluoroalkylchromene-4(4H)-thiones / Usachev BI,Shafeev MA,Sosnovskikh VY // RUSSIAN CHEMICAL BULLETIN. - 2004. - V. 53, l. 10. - P. 2285-2292.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article

Abstract:

2-Polyfluoroalkylchromene-4(4H)-thiones, synthesized from 2-polyfluoroalkylchromones and P2S5, react with aniline, phenylhydrazines, and hydroxylamine at the C(4) atom and afford corresponding anils, phenylhydrazones, and oximes of chromones. On heating in alcohol in the presence of concentrated HCl, chromone phenylhydrazones and oximes undergo ring closure to form 3-(2-hydroxyaryl)-1-phenyl-5-polyfluoroalkylpyrazoles and 5-hydroxy-3-(2-hydroxyaryl)-5-polyfluoroalkyl-Delta(2)-isoxazolines.

Author keywords:

2-polyfluoroalkylchromene-4(4H)-thiones; amines; hydrazines; hydroxylamine; anils; chromone phenylhydrazones; chromone oximes; pyrazoles; isoxazolines BENZO-GAMMA-PYRONE; ETHYL MERCAPTOACETATE; HYDROXYLAMINE; DERIVATIVES; CHROMONES; 2-TRIFLUOROMETHYLCHROMONES; ISOXAZOLES; HYDRAZINE; SERIES; AMINES

DOI:

10.1007/s11172-005-0115-9

Web of Science ID:

ISI:000227891300037

Соавторы в МНС:

Другие поля

Поле	Значение
Month	OCT
Publisher	SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	BENZO-GAMMA-PYRONE; ETHYL MERCAPTOACETATE; HYDROXYLAMINE; DERIVATIVES; CHROMONES; 2-TRIFLUOROMETHYLCHROMONES; ISOXAZOLES; HYDRAZINE; SERIES; AMINES
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
Author-Email	Vyacheslav.Sosnovskikh@usu.ru
Number-of-Cited-References	37
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	4
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	909WL