Process for the preparation of 2-(substituted)-4-sulfobenzoic ac

Details Process for the preparation of 2-(substituted)-4-sulfobenzoic ac Process for the preparation of 2-(substituted)-4-sulfobenzoic ac

1995-06-07

1996-10-15

Chan, Nicky

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

Organic compounds

Sulfonic acids or salts thereof

562 57, C07C30929

Patent

active

055656080

ABSTRACT:
A process for the preparation of 2-(substituted)-4-sulfobenzoic acid by oxidation of 2-(substituted)-4-toluenesulfonic acid.

REFERENCES:
patent: 5008448 (1991-04-01), Brown
patent: 5175351 (1992-12-01), Rohrscheid
patent: 5424481 (1995-06-01), Hagen
Y. Sasson et al., "Liquid Phase Oxidation of deactivated Methylbenzenes by Aqueous Sodium Hypochlorite Catalyzed by Ruthenium Salts under Phase-Transfer Catalytic Conditions" J. Org. Chem. 1986, 51, 2880-2883. Columbus, OH.
Nippon Kayaku Co., Ltd., "Sulfonitrobenzoic acids," Abstract of Jpn. Kokai Tokkyo Koho JP 57/200353 A2 [82/200353] Dec. 8, 1982., Japan.

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