Condensation chlorure d'acide-organomagnesien en presence d'halogenure cuivreux: Competition des reactions heterolytique et homolytique. synthese de cetones aliphatiques ramifiees
作者:J.E. Dubois、M. Boussu
DOI:10.1016/0040-4020(73)80220-0
日期:1973.1
hindered acid chlorides RCOCl towards ethylmagnesium bromide in the presence of cuprouschloride has been studied. In addition to the ketones RCOEt, the compounds RCOCOR, RCOR, RR, RH and R(H) are produced by a radical reaction. The condensation of R′MgX with iPr2CHCOCl in the presence of cuprous halide proceeds via alkylcopper species R′Cu.MgXX′ which reacts with the acid chloride to produce the
Grignard reagent–acid chloride condensation in the presence of copper(<scp>I</scp>) chloride. A study of structural effects by direct and competition methods
作者:John Anthony MacPhee、Michel Boussu、Jacques-Emile Dubois
DOI:10.1039/p29740001525
日期:——
The copper(I) chloride catalysed reaction between a Grignard reagent and an acid chloride in ether has been studied by using a competition method in which a pair of acid chlorides reacts with a single Grignard reagent, and by direct kinetic experiments in one case. The variation of relative rates produced by structuralchanges in the alkyl group of the acid chloride has been shown to correlate with