Method for racemization of optically active amines

Details Method for racemization of optically active amines Method for racemization of optically active amines

1976-05-14

1981-01-20

Hines, Robert V.

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

Organic compounds

Carboxylic acid esters

560 40, 560155, 560171, 564321, 564371, 564391, 564392, 564387, C07C 8728, C07C10102, C07C10132

Patent

active

042464242

ABSTRACT:
A method for racemization of optically active amines which comprises contacting an optically active amine of the formula: ##STR1## wherein C* is an asymmetric carbon atom, R.sub.1 is alkyl, aralkyl or aryl and R.sub.2 is aryl or alkoxycarbonyl, the aryl or aralkyl moiety bearing optionally one or more alkyl or alkoxy groups on the aromatic ring, provided that R.sub.1 and R.sub.2 are always different from each other, with a catalyst comprising an alkali metal and a polycyclic aromatic hydrocarbon until a sufficient amount of the optically active amine is racemized.

REFERENCES:
patent: 2214034 (1940-09-01), Tabern
patent: 3168566 (1965-02-01), Lotes et al.
patent: 3193590 (1965-07-01), Hsieh
patent: 3970700 (1976-07-01), Nagase et al.
Suga et al., "Chemistry & Industry", (1969), No. 3, p. 78.

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