Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
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.
Chopdekar Vilas M.
Schleck James R.
Jame Fine Chemicals, Inc.
Killos Paul J.
Matalon Jack
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