Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acid esters
Patent
1995-12-28
1997-02-25
Barts, Samuel
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acid esters
C07C 6702
Patent
active
056061030
ABSTRACT:
Methyl or ethyl esters of mono- and polycarboxylic acids are transesterified with alcohols and polyols by reaction in the presence of a catalytically effective amount of organotin catalyst, so that an alcohol or polyol carboxylic acid ester is formed, which is then washed with aqueous alkali having a pH bigger than about 13.2 so as to remove essentially all of the organotin catalyst, thereby permitting the recovery of the alcohol or polyol carboxylic acid ester essentially free of the organotin catalyst.
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Chwang Willy K.
Meisel Lee B.
Meisel Philip L.
Trapasso Louis E.
Barts Samuel
CPS Chemical Company, Inc.
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