Method for making bis-etherphthalimides

Details Method for making bis-etherphthalimides Method for making bis-etherphthalimides

1982-03-05

1984-06-19

Daus, Donald G.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548474, 548426, C07D20948

Patent

active

044554311

ABSTRACT:
A simplified method is provided for making aromatic bis-etherphthalimides by employing a polychlorinated C.sub.(1-3) alkane solution of nitro-N-organophthalimide directly with alkali metal bisphenoxide salt in a refluxing nonpolar organic solvent. After the polychlorinated C.sub.(1-3) alkane has completely distilled from the mixture, a phase transfer catalyst is added. As a result, the requirement for isolating and handling nitro-N-organophthalimide solids prior to condensation with alkali metal bisphenoxide salts is thereby eliminated.

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