Method for making aromatic ether imides

Details Method for making aromatic ether imides Method for making aromatic ether imides

1979-05-09

1981-06-16

Daus, Donald G.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260326R, 260326S, 260326HL, C07D20948

Patent

active

042737125

ABSTRACT:
A method for making aromatic ether imides is provided by effecting the displacement of reactive radicals on a phthalimide nucleus with a mono- or bis-alkali metal phenoxide in the presence of a nonpolar solvent and a phase transfer catalyst, such as a tetra-ammonia salt. The aromatic ether imides made by the present invention are useful intermediates for making aromatic ether anhydrides and aromatic bis(ether anhydrides).

REFERENCES:
patent: 3852242 (1974-12-01), White
patent: 3957862 (1976-05-01), Heath et al.
patent: 4048190 (1977-09-01), Johnson et al.
C. Starks, J. Amer. Chem. Soc., 93:1, (1971), pp. 195-199, Phase-Transfer Catalysis I. Heterogeneous Reactions Involving Anion Transfer by Quaternary Ammonium and Phosphonium Salts.

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