Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1985-09-23
1987-08-04
Evans, J. E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
562556, 562564, 562567, 562571, 562574, 562575, C07F 936
Patent
active
046844830
ABSTRACT:
An N-substituted amino acids can be prepared by the steps of: bringing together under reaction condition glyoxal and a source of sulfur dioxide in an aqueous medium to produce a sulfonated intermediate; and introducing into said medium a nitrogen compound selected from the group consisting of ammonia, a primary amine, and a secondary amine, into said medium containing said intermediate to produce said N-substituted amino acid.
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Maurer & Woltersdorf, "Formation of Amino Acids from .alpha.-Dicarbonyl Compounds", Z. Physiol. Chem., 254, 18-24 (1938).
Miller William H.
Richard Thomas J.
Evans J. E.
Monsanto Company
Shearin Frank D.
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