Process for the manufacture of 1,2-dichloro-3,3-dimethylbut-1-ene
申请人:IMPERIAL CHEMICAL INDUSTRIES PLC
公开号:EP0010855A1
公开(公告)日:1980-05-14
1,2-Dichloro-3,3-dimethylbut-1-ene is prepared by heating 1,1,2-trichloro-3,3-dimethylbutane in a polar aprotic solvent, preferably in the presence of an alkali or alkaline earth metal halide such as lithium chloride.
[EN] PROCESS FOR THE PREPARATION OF 1,1-DICHLORO-2-ALKYLETHYLENE<br/>[FR] PROCÉDÉ DE PRÉPARATION DE 1,1-DICHLORO-2-ALKYLETHYLÈNE
申请人:ITALIANA SINT SPA
公开号:WO2008015714A2
公开(公告)日:2008-02-07
[EN] The object of the present invention is a process for the preparation of 1,1-dichloro-2-alkyl-1-ethylene and in particular, 1, 1-dichloro-3,3-dimethyl-1-butene. These compounds are useful intermediates for the preparation of the corresponding 2-alkylacetylenes and salts thereof alongside the corresponding 2-alkylacetic acids. [FR] Cette invention concerne un procédé de préparation de 1,1-dichloro-2-alkyléthylène et en particulier de 1,1-dichloro-3,3-diméthyl-1-butène. Ces composés constituent des intermédiaires utiles pour la préparation des 2-alkylacétylènes correspondants et de leurs sels, ainsi que des acides 2-alkylacétiques correspondants.