Process for the preparation of acid anhydrides

Details Process for the preparation of acid anhydrides Process for the preparation of acid anhydrides

C - Chemistry, Metallurgy

07

C

C07C 51/567 (2006.01) C07C 201/12 (2006.01) C07C 205/57 (2006.01) C07C 319/12 (2006.01)

Patent

CA 2085823

4-18913/A/SFS Process for the preparation of acid anhydrides Abstract of the Disclosure The invention relates to a novel process for the preparation of symmetrical acidanhydrides of general formula Image (I), which process comprises reacting a compound of formula Image (II), with an acid anhydride of formula Image (III), with removal by distillation of the compound of formula Image (IV). R2 and X are as defined in the description, and X is chloro or bromo.

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