Transformations of gem-dichloroarylcyclopropanes in the reaction with NOCl·2SO3. Synthesis of 3-aryl-5-chloroisoxazoles
摘要:
Nitrosation with complex NOCl center dot 2SO(3) of gem-dichloroarylcyclopropanes containing acceptor substituents in the aromatic ring proceeded chemo- and regioselectively affording 3-aryl-5-chloroisoxazoles in high yields. The presence of donor substituents complicated the reaction by the occurrence of competing processes.
Transformations of gem-dichloroarylcyclopropanes in the reaction with NOCl·2SO3. Synthesis of 3-aryl-5-chloroisoxazoles
作者:O. B. Bondarenko、A. Yu. Gavrilova、D. S. Murodov、N. S. Zefirov、N. V. Zyk
DOI:10.1134/s1070428013020024
日期:2013.2
Nitrosation with complex NOCl center dot 2SO(3) of gem-dichloroarylcyclopropanes containing acceptor substituents in the aromatic ring proceeded chemo- and regioselectively affording 3-aryl-5-chloroisoxazoles in high yields. The presence of donor substituents complicated the reaction by the occurrence of competing processes.
Nitrosylsulfuric acid in the synthesis of 5-chloroisoxazoles from 1,1-dichlorocyclopropanes
作者:Oksana B. Bondarenko、Zaur M. Garaev、Arseniy I. Komarov、Lyubov I. Kuznetsova、Svetlana V. Gutorova、Dmitry A. Skvortsov、Nikolai V. Zyk
DOI:10.1016/j.mencom.2019.07.021
日期:2019.7
Nitrosylsulfuric acid is shown to be a usable reagent for the synthesis of 5-chioroisoxazoles from readily available 1,1-dichlorocyclopropanes via nitrosation-heterocyclization reaction. A cytotoxicity of some of the prepared 5-chloroisoxazoles towards MCF7, A549, HEK293T and VA13 cell lines was evaluated.