Process for purifying .alpha.,.beta.-unsaturated esters

Details Process for purifying .alpha.,.beta.-unsaturated esters Process for purifying .alpha.,.beta.-unsaturated esters

1995-01-11

1995-11-21

Killos, Paul J.

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

Organic compounds

Carboxylic acid esters

C07C 6748

Patent

active

054688990

ABSTRACT:
This invention provides a method for reducing carbonyl-containing impurities in .alpha.,.beta.-unsaturated carboxylic acid esters by treatment of the ester with one or more of a selected phenylenediamine and an acid.

REFERENCES:
patent: 4668818 (1987-05-01), Lipp et al.
patent: 4748269 (1988-05-01), Meixner et al.
patent: 5034558 (1991-07-01), Yoshioka et al.

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