Method for racemization of chrysanthemic acid or its ester

Details Method for racemization of chrysanthemic acid or its ester Method for racemization of chrysanthemic acid or its ester

1985-02-19

1987-02-17

Shippen, Michael L.

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

Organic compounds

Carboxylic acid esters

562401, 562506, C07C 67333, C07C 51353

Patent

active

046440801

ABSTRACT:
The present invention relates to a method for racemization of a chrysanthemic acid or its ester, which comprises contacting the acid or its ester with a boron bromide compound, optionally in the presence of organic hydroperoxide.

REFERENCES:
patent: 3794680 (1974-02-01), Matsui
patent: 3989750 (1976-11-01), Nagase
patent: 4182906 (1980-01-01), Suzukamo
patent: 4473703 (1984-09-01), Suzukamo
patent: 4485257 (1984-11-01), Suzukamo

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