Process for preparing alkyl halogenodifluoroacetates

Details Process for preparing alkyl halogenodifluoroacetates Process for preparing alkyl halogenodifluoroacetates

C - Chemistry, Metallurgy

07

C

C07C 69/63 (2006.01) C07C 67/00 (2006.01) C07C 67/39 (2006.01)

Patent

CA 2206964

The invention is a process for preparing alkyl halogenodifluoroacetates. The process consists in causing a 1,1-difluorotetrahalogenoethane to react with an alcohol in the presence of oxygen and a free radical chemical initiator. Alkyl halogenodilfuoroacetates are used as intermediates for synthesizing pharmaceutical and phytosanitary products.

L'invention a pour objet un procédé de préparation d'halogéno-difluoroacétates d'alkyle. Ce procédé consiste à faire réagir un 1,1-difluorotétrahalogénoéthane avec un alcool en présence d'oxygène et d'un initiateur chimique de radicaux libres. Les halogénodifluoroacétates d'alkyle sont utilisés comme intermédiaires de synthèse de produits pharmaceutiques et phytosanitaires.

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