Method for preparing 1,1,1,3,3-pentachlorobutane

Details Method for preparing 1,1,1,3,3-pentachlorobutane Method for preparing 1,1,1,3,3-pentachlorobutane

C - Chemistry, Metallurgy

07

C

C07C 17/278 (2006.01) C07C 17/275 (2006.01) C07C 19/08 (2006.01)

Patent

CA 2288939

The invention concerns a method for obtaining 1,1,1,3,3-pentachlorobutane which consists in reacting carbon tetrachloride with 2-chloroprop-1-ene in the presence of a copper (I) or (II) compound as telomerisation catalyst. Advantageously, a polar compound can be present in the reaction mixture as solvent and an amine, an amide or a trialkylphosphine amide as co-catalyst.

Le 1,1,1,3,3-pentachlorobutane est obtenu par réaction entre du tétrachlorure de carbone et du 2-chloroprop-1-ène en présence d'au moins un composé de cuivre (I) ou (II) à titre de catalyseur de télomérisation. Avantageusement, un composé polaire peut être présent dans le mélange réactionnel à titre de solvant et une amine, un amide ou un oxyde de trialkylphosphine à titre de cocatalyseur.

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