Process for the preparation of dimethylmaleic anhydride

C - Chemistry – Metallurgy – 07 – D

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260/365.5

C07D 307/60 (2006.01) C07C 51/56 (2006.01) C07C 51/567 (2006.01)

Patent

CA 1229617

Process for the preparation of dimethylmaleic anhydride Abstract of the Disclosure The reaction of maleic acid, fumaric acid and/or maleic anhydride in the presence of N-acylated heterocyclic amidines and at elevated temperature affords dimethylmaleic anhydride in good yield. Catalytic amounts of the amidine employed are sufficient for said reaction.

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