Preparation of esters of 3,5,6-trichlorosalicyclic acid

Details Preparation of esters of 3,5,6-trichlorosalicyclic acid Preparation of esters of 3,5,6-trichlorosalicyclic acid

1994-04-04

1995-08-15

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

C07C 6976

Patent

active

054420920

ABSTRACT:
An improved process for the preparation of esters of 3,5,6-trichlorosalicylic acid which comprises reacting the acid with an alcohol under distillation conditions in the presence of a catalyst comprising a glycol titanate or glycol stannate. The process results in substantially quantitative yields of the ester without any significant side reactions, e.g. conversion of the alcohol to by-product ether.

REFERENCES:
patent: 3706774 (1972-12-01), Gitlitz
patent: 5194666 (1993-03-01), Sedlak et al.
D. M. Puri et al. "Ethylene Glycol Derivatives of Titanium", Indian J. Chem. vol. 5, Sep., 1967 pp. 448-450.

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