Organic compounds -- part of the class 532-570 series – Organic compounds – Heterocyclic carbon compounds containing a hetero ring...
Patent
1985-08-06
1987-02-17
Jiles, Henry R.
Organic compounds -- part of the class 532-570 series
Organic compounds
Heterocyclic carbon compounds containing a hetero ring...
C07D30760
Patent
active
046440690
ABSTRACT:
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.
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).
Baumann Marcus
Breitenstein Werner
Ciba-Geigy Corporation
Dentz Bernard I.
Hall Luther A. R.
Jiles Henry R.
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