US PATENT SUBCLASS 560 / 175
.~.~.~.~ Preparing esters by carbonylation

Current as of: June, 1999
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560 /   HD   ORGANIC COMPOUNDS -- PART OF THE CLASS 532-570 SERIES

*  DD  ORGANIC COMPOUNDS (Class 532, Subclass 1) {17}
1  DF  .~ Carboxylic acid esters {14}
129  DF  .~.~ Acyclic acid moiety {9}
174  DF  .~.~.~ Aldehyde or ketone group in acid moiety {4}
175.~.~.~.~ Preparing esters by carbonylation

DEFINITION

Classification: 560/175

Preparing esters by carbonylation:

(under subclass 174) Processes wherein the ester is prepared through formation of a carboxyl group of a starting material by reaction with a carbonylating agent such as carbon monoxide either in the presence of an alcohol or by subsequent esterification of the formed acid.