Synthesis of 3-alkylamino-3-(2-hydroxyaryl)-1-polyfluoroalkylprop-2-en-1-ones and 2-polyfluoroalkyl-4H-chromen-4-imines / Sosnovskikh VY,Usachev BI // RUSSIAN CHEMICAL BULLETIN. - 2004. - V. 53, l. 2. - P. 383-392.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article

Abstract:

Condensation of Schiff's bases (prepared from 2-hydroxy- or 2-ilydroxy-5-methylaceto-pheriones and primary amines) with ethyl polyfluoroalkanoates in the presence of LiH in THF affords 3-alkylamino-3-(2-hydroxyaryl)-1-polyfluoroalkylprop-2-en-1-ones, which undergo cyclization in acidic media into 2-polyfluoroalkyl-4H-chromen-4-iminium salts. When neutralized with aqueous ammonia, the latter give 2-polyfluoroalkyl-4H-chromen-4-imines in high yields.

Author keywords:

Schiff's bases; polyfluoroalkanoic acid esters; amino enones; 2-polyfluoroalkyl-4H-chromen-4-imines and their salts SCHIFF-BASES; 2-TRIFLUOROMETHYLCHROMONES; DIANIONS

DOI:

10.1023/B:RUCB.0000030815.4076

Web of Science ID:

ISI:000222733300016

Соавторы в МНС:

Другие поля

Поле	Значение
Month	FEB
Publisher	CONSULTANTS BUREAU
Address	233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	SCHIFF-BASES; 2-TRIFLUOROMETHYLCHROMONES; DIANIONS
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
Author-Email	vyacheslav.sosnovskikh@usu.ru
Number-of-Cited-References	25
Usage-Count-Since-2013	1
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	838SK