1,1-Dihydropolyfluoroalkylthionitrozo compounds and N- sulfinyl-1,1-dihydropolyfluoroalkylamines

Autor: N.P. Kolesnik, A.V. Borodin, Leonid N. Markovski, Ju.G. Shermolovich, A.V. Solov'ev
Rok vydání: 1991
Předmět:
Zdroj: Journal of Fluorine Chemistry. 54:402
ISSN: 0022-1139
DOI: 10.1016/s0022-1139(00)83911-1
Popis: The effect of the polyfluoroalkyl sunstituent upon thermal stability and regioselectivity of [2+4]-cycloaddition reactions of fluorine-containing compounds with −N=S and −N=S=O fragments has been studied. 1.1-Dihydropolyfluoroalkylthionitroso compounds (1) and the products of their reactions with dienes (2,3,4) are formed by the sheme. In case of assymetric dienes, the [2+4] cycloaddition reaction is regioselective and proceeds with preferable formation of the para-isomer (3). The same degree of regioselectivity is observed during the reaction of asymmetric dienes with N-sulfinyl-1,1- dihydropolyfluoroalkylamines (5).
Databáze: OpenAIRE