Process

Details Process Process

1998-04-23

1999-09-14

Geist, Gary

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

Organic compounds

Sulfonic acids or salts thereof

526 88, C07C32100

Patent

active

059525240

ABSTRACT:
The present invention provides a process for the production of a compound of formula: ##STR1## in which X and Y, independently, are hydrogen, halogen, NO.sub.2, CF.sub.3, CN, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy, COO--C.sub.1 -C.sub.4 alkyl, CO--C.sub.1 -C.sub.4 alkyl, NH--(C.sub.1 -C.sub.4 alkyl), N(C.sub.1 -C.sub.4 alkyl).sub.2, NH(C.sub.1 -C.sub.4 alkyl-OH), N(C.sub.1 -C.sub.4 alkyl-OH).sub.2, COOH or SO.sub.3 H or an ester or amide thereof, or COOM or SO.sub.3 M in which M is Na, K, Ca, Mg, ammonium, mono-, di-, tri- or tetra-C.sub.1 -C.sub.4 alkylammonium, mono-, di- or tri-hydroxyalkylammonium or ammonium that is di- or tri-substituted with a mixture of C.sub.1 -C.sub.4 alkyl and C.sub.1 -C.sub.4 hydroxyalkyl groups;

REFERENCES:
patent: 3980713 (1976-09-01), Matsunaga et al.
patent: 5231223 (1993-07-01), Bader et al.
patent: 5360924 (1994-11-01), Beller et al.
patent: 5516932 (1996-05-01), Beller et al.
J. Org. Chem., vol. 46, (1981), pp. 4885-4888.

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