Process for decomposing .alpha.,.beta.-unsaturated carbonyl comp

Details Process for decomposing .alpha.,.beta.-unsaturated carbonyl comp Process for decomposing .alpha.,.beta.-unsaturated carbonyl comp

1991-04-08

1992-03-17

Dees, Jose G.

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

Organic compounds

Carboxylic acid anhydrides

562891, C07C 5154

Patent

active

050970690

ABSTRACT:
Unsaturated ketones such as mesityl oxide may be removed from acetic anhydride, or mixtures of acetic anhydride and acetic acid, by heating a solution comprising (1) acetic anhydride, or a mixture of acetic anhydride and acetic acid, (2) an .alpha.,.beta.-unsaturated ketone, (3) ferrous (Fe II) and/or cobaltous (Co II) ion, (4) a cation selected from alkali metals, alkaline earth metals, quaternary organoammonium, quaternary organophosphonium and mixtures thereof, and (5) iodide ion.

REFERENCES:
patent: 4442304 (1984-04-01), Erpenbach et al.
patent: 4792420 (1988-12-01), Kizkalla

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