Process of the preparation of 2,5-di-phenylamino-terephthalic ac

Details Process of the preparation of 2,5-di-phenylamino-terephthalic ac Process of the preparation of 2,5-di-phenylamino-terephthalic ac

1993-05-20

1994-09-13

Dees, JoseG.

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

Organic compounds

Carboxylic acid esters

562457, C07C22900

Patent

active

053470389

ABSTRACT:
An ecologically and economically improved process for the preparation of 2,5-di-phenylamino-terephthalic acid and its di-alkyl esters of the formula (1) ##STR1## in which R is a hydrogen atom or a methyl group and R' is a hydrogen atom or a methyl or ethyl group.

REFERENCES:
patent: 5208365 (1993-05-01), Fuchs et al.

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