Method of producing amino carboxylic acids

Details Method of producing amino carboxylic acids Method of producing amino carboxylic acids

2005-07-12

2005-07-12

Zucker, Paul A. (Department: 1621)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C560S171000

Reexamination Certificate

active

06916947

ABSTRACT:
The present invention is directed to a method for producing amino acids by reacting halogenated carboxylic acid ester (haloacid esters) with a metal cyanate in the presence of an alcohol and by subsequent acidic saponification of the urethane carbonic acid formed. The method is characterized by the metal cyanate being placed at an elevated temperature in an organic solvent and the other reactants being continuously charged into the mixture over a defined time period.

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patent: WO 98/50341 (1998-11-01), None
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Abstract for AH1 above.
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