Process for producing alpha-hydroxycarboxylic acid amide

Details Process for producing alpha-hydroxycarboxylic acid amide Process for producing alpha-hydroxycarboxylic acid amide

1989-12-26

1990-08-21

Hollrah, Glennon H.

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

Organic compounds

Amino nitrogen containing

C07C10208

Patent

active

049508016

ABSTRACT:
Disclosed is a process for producing .alpha.-hydroxy-carboxylic acid amide represented by the formula (I): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification, by a catalytic hydration reaction of cyanohydrin represented by the formula (II): ##STR2## which comprises using a modified manganese dioxide containing one or more of an alkali metal element and an alkaline earth element in an amount of 0.05 to 0.5 based on the manganese element in terms of atomic ratio.

REFERENCES:
patent: 2415645 (1947-02-01), Lichtenwalter et al.
patent: 3794682 (1974-02-01), Barber

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