2-trifluoromethyl-4H-thiochromen-4-one and 2-trifluoromethyl-4H-thiochromene-4-thione: synthesis and reactivities / Usachev B. I.,Shafeev M. A.,Sosnovskikh V. Ya. // RUSSIAN CHEMICAL BULLETIN. - 2006. - V. 55, l. 3. - P. 523-528.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article

Abstract:

2-Trifluoromethyl-4H-thiochromene-4-thione obtained from 2-trifluoromethyl-4H-thiochromen-4-one and P2S5 reacts with aromatic amines, hydrazine hydrate, phenylhydrazine, and hydroxylamine at the C(4) atom of the chromene ring to give the corresponding anils, azine, hydrazones, and oxime of thiochromone. 2-Trifluoromethyl-4H-thiochromenone is oxidized by hydrogen peroxide in AcOH into 4-oxo-2-trifluoromethyl-4H-thiochromene 1,1-dioxide and reduced by NaBH4 to 2-trifluoromethyl-4H-thiochromen-4-oI or cis-2-(trifluoromethyl)thiochroman-4-ol. When treated with hydrazine hydrate, thiochromen-4-one gives 3(5)-(2-mercaptophenyl)-5(3)-trifluoromethylpyrazole.

Author keywords:

2-trifluoromethyl-4H-thiochromen-4-one; oxidation; reduction; 2-trifluoromethyl-4H-thiochromene-4-thione; anils; hydrazones; azine; and oxime of thiochromone 3-(SUBSTITUTED METHYL)-2-PHENYL-4H-1-BENZOTHIOPYRAN-4-ONES; CHROMONES; DERIVATIVES; ANALOGS; THIOCHROMONES; HYDROXYLAMINE; THIOFLAVONES; FLAVONES; SERIES

DOI:

10.1007/s11172-006-0286-z

Web of Science ID:

ISI:000239714700017

Соавторы в МНС:

Другие поля

Поле	Значение
Month	MAR
Publisher	CONSULTANTS BUREAU/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	3-(SUBSTITUTED METHYL)-2-PHENYL-4H-1-BENZOTHIOPYRAN-4-ONES; CHROMONES; DERIVATIVES; ANALOGS; THIOCHROMONES; HYDROXYLAMINE; THIOFLAVONES; FLAVONES; SERIES
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
Author-Email	Vyacheslav.Sosnovskikh@usu.ru
Number-of-Cited-References	34
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	11
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	073AN