Method for making oxydiphthalic anhydride

Details Method for making oxydiphthalic anhydride Method for making oxydiphthalic anhydride

1988-03-04

1989-02-28

Raymond, Richard L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

C07D30789

Patent

active

048087319

ABSTRACT:
Oxydiphthalic anhydride is prepared by effecting contact between a substituted phthalic anhydride such as 4-nitro or 4-fluoro phthalic anhydride and a dialkylaminopyridine in the presence of a refluxing nonpolar organic solvent.

REFERENCES:
patent: 4513141 (1985-04-01), Brunelle et al.
patent: 4697023 (1987-09-01), Schwartz et al.
Markezich, R. L. & Zamek, O.S., "Reactions of Fluoride and Nitrite Ions with 4-Nitrophthalimides", J. of Organic Chemistry, vol. 42 (1977) pp. 3431-3434.

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