Process for the preparation of dimethylmaleic anhydride

Details Process for the preparation of dimethylmaleic anhydride Process for the preparation of dimethylmaleic anhydride

1985-08-06

1987-01-27

Jiles, Henry R.

Organic compounds -- part of the class 532-570 series

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30760

Patent

active

046395318

ABSTRACT:
The reaction of maleic acid, fumaric acid and/or maleic anhydride at elevated temperature and in the presence of catalytic amounts of a heterocyclic amidine or a salt thereof with protonic acids affords dimethylmaleic anhydride in good yield.

REFERENCES:
patent: 3818050 (1974-06-01), Baumann et al.
patent: 3833619 (1974-09-01), Baumann et al.
patent: 4480106 (1984-10-01), Breitenstein et al.
M. E. Baumann et al, Helv. Chim Acta, 61, 2751 (1978).

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