Method of preparing aromatic ether bisimides

Details Method of preparing aromatic ether bisimides Method of preparing aromatic ether bisimides

1993-02-18

1994-10-25

Morris, Patricia L.

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

Organic compounds

Heterocyclic carbon compounds containing a hetero ring...

548476, 548480, 548481, C07D40312

Patent

active

053590848

ABSTRACT:
A method for preparing an aromatic ether bisimide is provided. The mixture obtained from reacting a substituted phthalimide with a metal salt of a hydroxy aromatic compound in a non-polar solvent is extracted with about 4% to about 6% by weight aqueous alkali hydroxide solution to remove the reaction's by-products and thus provide substantially pure aromatic ether bisimide. The method is particularly suitable for extracting aromatic ether bisimide by-products from a continuous process preparing aromatic ether bisimide.

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