Organic compounds -- part of the class 532-570 series – Organic compounds – Carboxylic acids and salts thereof
Patent
1998-01-20
1999-10-26
Killos, Paul J.
Organic compounds -- part of the class 532-570 series
Organic compounds
Carboxylic acids and salts thereof
562556, 560183, 558436, 558441, 568 41, C07C31500
Patent
active
059732008
ABSTRACT:
A process for the free-radical addition of a mercaptan to a nonconjugated olefinic substrate having a terminal carbon-carbon double bond is disclosed. 2-Hydroxy-4-(ethylthio)butanoic acid (HMBA) or methionine can be prepared using this method. The nonconjugated olefinic substrate has the general formula: ##STR1## wherein R is selected from the group consisting of --COOH, --COOR.sup.2, --CONR.sup.3 R.sup.4, --CN and --CCl.sub.3, R.sup.1 is selected from the group consisting of --OH, --OCOR.sup.2, --NHCOR.sup.2 and --NH.sub.2, R.sup.2 is selected from the group consisting of alkyl, cycloalkyl and aryl and R.sup.3 and R.sup.4 are independently selected from the group consisting of --H and R.sup.2.
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Killos Paul J.
Novus International, Inc.
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