Process for the preparation of benzoin sulfonates

Details Process for the preparation of benzoin sulfonates Process for the preparation of benzoin sulfonates

Filed on

1987-12-07

Date issued

1989-06-06

Examiner

Chan, Nicky

Patent Class

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

SubClass

Organic compounds

SubSubClass

Sulfonate esters

Other Related Categories

549473, 549 73, 549 72, 549 70, 546284, 546283, 546262, 546190, 546187, 544152, 544146, 544130, C07C14368

Type

Patent

Status

active

Patent number

048373508

Description

ABSTRACT:
Benzoin esters of aromatic sulfonic acids can be obtained in high yield from benzoin and the respective sulfonyl halide in molar amounts of a base by carrying out the reaction at low temperature in an organic solvent with the addition of water. Aqueous NaOh or KOH can be used as base in this process.

REFERENCES:
patent: 3732273 (1973-05-01), Heine et al.
patent: 4347248 (1982-08-01), Wright, Jr. et al.
patent: 4510290 (1985-04-01), Kirchmayr et al.
patent: 4699949 (1987-10-01), Berner et al.
I. J. Borowitz, J. Org. Chem., 34 (1969), 1595-1600.

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