Method for producing ethers, esters or acid anhydrides

Details Method for producing ethers, esters or acid anhydrides Method for producing ethers, esters or acid anhydrides

C - Chemistry, Metallurgy

07

F

C07F 9/141 (2006.01)

Patent

CA 2481222

Ethers, esters or acid anhydrides are advantageously obtained when a cake situated on a filtering element and consisting of a first reactant, which is selected among salts of organic or oxygen-containing inorganic acids or alcoholates, is flown though by a solution consisting of a second reactant, which is selected among inorganic or organic acid halides and alkyl halides, whereby the formed insoluble halide salt remains on the filtering element. This enables the halide salt to be easily separated in an essentially quantitative manner.

Selon l'invention, des éthers, des esters ou des anhydrides d'acide sont obtenus avantageusement si l'on fait passer, à travers un gâteau d'un premier réactif, disposé sur un groupe filtrant et sélectionné dans des sels d'acides ou d'alcoolats organiques ou inorganiques à base d'oxygène, une solution d'un second réactif sélectionné dans des halogénures d'acide et des halogénures d'alkyle inorganiques ou organiques, de sorte que le sel d'halogénure non soluble obtenu demeure sur le groupe filtrant. Le sel d'halogénure peut ainsi être séparé aisément de manière sensiblement quantitative.

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