Synthesis of bisimides

Details Synthesis of bisimides Synthesis of bisimides

C - Chemistry, Metallurgy

07

D

260/306.3

C07D 207/448 (2006.01)

Patent

CA 2002044

ABSTRACT OF DISCLOSURE SYNTHESIS OF BISIMIDES The present invention relates to a process for producing bisimides of unsaturated cyclic dianhydrides by cyclodehydration of the corresponding bisamic acid using acetic anhydride and a base component characterised in that the base component is free of amino compounds and comprises a carbonate or bicarbonate of an alkali metal or an alkaline earth metal.

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