Preparation of esters of 3,5,6-trichlorosalicyclic acid
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United States of America Patent
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Aug 15, 1995
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N/A
app pub date -
Apr 4, 1994
filing date -
Apr 4, 1994
priority date (Note) -
Expired
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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.
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