Process for the preparation of 4,4'-bis-(4-aminophenoxy)-dipheny

Details Process for the preparation of 4,4'-bis-(4-aminophenoxy)-dipheny Process for the preparation of 4,4'-bis-(4-aminophenoxy)-dipheny

1991-11-12

1993-09-07

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

C07C21306

Patent

active

052430774

ABSTRACT:
4,4'-bis-(4-aminophenoxy)-diphenyl sulfone (BAPS) has been prepared from 4-aminophenol and a 4,4'-dihalodiphenyl sulfone in an organic solvent in the presence of an inorganic carbonate in a one-stage reaction, a pure product having a high melting point being obtained.

REFERENCES:
patent: 3817921 (1974-06-01), Brode et al.
patent: 4754068 (1988-06-01), Yamaguchi et al.

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