Preparation of 4-fluorophthalic anhydride

Details Preparation of 4-fluorophthalic anhydride Preparation of 4-fluorophthalic anhydride

1975-01-30

1976-05-11

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07D30789

Patent

active

039563219

ABSTRACT:
4-Fluorophthalic anhydride can be prepared by reacting potassium fluoride with 4-nitrophthalic anhydride. The use of solvents can increase the rate of reactivity and reduce the temperature at which reaction takes place. The more reactive 4-fluorophthalic anhydride can be used to make BPA-dianhydride employed in the production of polyetherimides.

REFERENCES:
finger et al., J.A.C.S. Vol. 78, pp. 6034-6037 (1956).
Bartoli et al., J. of Chemical Society (Perkin I), p. 2671 (1972).
Gould, Mechanism and Structure in Organic Chemistry, New York - Holt, Rhinehart and Winston (1959) pp. 212-220.
Cram et al., Organic Chemistry, N. Y. - McGraw-Hill, (1959) pp. 311-312.
Pedersen, J.A.C.S. Vol. 89 (26), pp. 7017-7021 (1967).

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