Process for racemization of allethrolone

Details Process for racemization of allethrolone Process for racemization of allethrolone

1977-05-09

1978-09-05

Morgenstern, Norman

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

560231, C07C 4500, C07C 4524, C07C 4946, C07B 2000

Patent

active

041119932

ABSTRACT:
A novel process for the preparation of racemic allethrolone of the (R,S) configuration comprising heating optically active allethrolone of the (R) configuration or of the (S) configuration or a mixture of the (R) and (S) configurations in non-equimolecular proportions with formic acid to form the formate of racemic allethrolone of (R,S) configuration and hydrolyzing the latter in the presence of an acid or base to obtain racemic (R,S) allethrolone.

REFERENCES:
patent: 3981919 (1976-09-01), Umemura et al.
patent: 4001334 (1977-01-01), Umemura
La Forge et al., "J.A.C.S.", vol. 74, p. 5392 (1954).

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