Method for racemization of optically active 2,2-dimethylcyclopro

Details Method for racemization of optically active 2,2-dimethylcyclopro Method for racemization of optically active 2,2-dimethylcyclopro

1983-04-04

1984-07-31

Shippen, Michael L.

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

Organic compounds

Carboxylic acids and salts thereof

260544L, C07C 5158, C07C 5104

Patent

active

044631880

ABSTRACT:
A method for racemization of optically active 2,2-dimethylcyclopropane-1-carboxylic acid by converting said acid to the corresponding halide thereof represented by the general formula; ##STR1## wherein X is a halogen atom, which is heated to a temperature of about 80.degree. C. to about 300.degree. C., preferably about 100.degree. C. to about 200.degree. C., and then, if desired, producing 2,2-dimethylcyclopropane-1-carboxylic acid by hydrolysis of the resultant acid halide.

REFERENCES:
patent: 4008268 (1977-02-01), Mizutani
patent: 4182906 (1980-01-01), Suzukamo

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