Method for the production of a mixture of lactide derivatives

Details Method for the production of a mixture of lactide derivatives Method for the production of a mixture of lactide derivatives

C - Chemistry, Metallurgy

07

D

C07D 319/12 (2006.01) C07B 55/00 (2006.01)

Patent

CA 2734102

The present invention relates to three variants for preparing a mixture of cyclic diesters derived from lactic acid and especially a racemate of dilactide. This can proceed, as desired, from the corresponding a-hydroxycarboxylic acids, the corresponding cyclic diesters or oligomers of the corresponding a- hydroxycarboxylic acids.

L'invention concerne trois variantes de préparation d'un mélange de diesters cycliques dérivés d'acide lactique et, en particulier, un racémate de dilactide. Ceci permet d'obtenir, de façon sélective, les acides a-hydrocycarboniques, les diesters cycliques correspondants ou les oligomères des acides a-hydrocarboniques correspondants.

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