Reactions of 3,3-dialkyl-2,3-dihydro-6-trifluoromethyl-4-pyrones with hydroxylamine. Synthesis and structures of 5-(1,1-dialkyl-2-hydroxyethyl)-5-hydroxy-3-trifluoromethyl-Delta(2)-isox azolines / Sosnovskikh VY,Mel'nikov MY,Pogozhikh SA // RUSSIAN CHEMICAL BULLETIN. - 1999. - V. 48, l. 7. - P. 1323-1328.

ISSN/EISSN:

1066-5285 / нет данных

Type:

Article

Abstract:

The reactions of 3,3-dialkyl-2,3-dihydro-6-trifluoromethyl-4-pyrones with hydroxylamine hydrochloride afforded regioisomeric 3(5)-(1,1-dialkyl-2-hydroxyethyl)-5-hydroxy-5(3)-trifluoromethyl-Delta(2 )-isoxazolines depending on the reaction conditions. The title compounds were also prepared from 2,2-dialkyl-5-amino-1-hydroxy-6,6,6-trifluorohex-4-en-3-ones. The above dihydropyrones reacted with hydroxylamine (base) to yield 3-(1,1-dialkyl-2-hydroxyethyl)-5-hydroxyamino-5-trifluoromethyl-Delta(2) -isoxazolines.

Author keywords:

CF3-containing 2,3-dihydro-4-pyrones; hydroxylamine; (hydroxyalkyl)-enaminones; regioisomeric Delta(2)-isoxazolines; X-ray diffraction analysis HETEROCYCLES; FLUORINE

DOI:

10.1007/BF02495297

Web of Science ID:

ISI:000082938900021

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	JUL
Publisher	PLENUM PUBL CORP
Address	CONSULTANTS BUREAU, 233 SPRING ST, NEW YORK, NY 10013 USA
Language	English
Keywords-Plus	HETEROCYCLES; FLUORINE
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Multidisciplinary
ResearcherID-Numbers	Pogozhikh, Sergey/Q-5077-2017
Number-of-Cited-References	18
Usage-Count-Last-180-days	1
Usage-Count-Since-2013	1
Journal-ISO	Russ. Chem. Bull.
Doc-Delivery-Number	242KB