Process for producing unsaturated carboxylic acid esters

Details Process for producing unsaturated carboxylic acid esters Process for producing unsaturated carboxylic acid esters

1978-01-27

1980-05-13

Helfin, Bernard

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

Organic compounds

Carboxylic acid esters

560222, C07C 6703, C07C 6954

Patent

active

042029902

ABSTRACT:
An ester of an unsaturated carboxylic acid is prepared by an ester exchange process which comprises reacting a lower alkyl ester of an unsaturated, 3-4 carbon atom carboxylic acid with a higher alcohol than the alcohol fragment of said lower alkyl ester over a catalyst selected from the group consisting of (1) chelate compounds of zirconium with .beta.-diketone or mixtures thereof, (2) chelate compounds of calcium with .beta.-diketone or mixtures thereof, and mixtures thereof by an ester exchange reaction.

REFERENCES:
patent: 3642877 (1972-02-01), Jayawant
Matsukura, Tomita et al., "Polyester Compositiona", Japan 72 26,437, (See Chemical Abstracts vol. 78 (1973) #59245x).
Chimura, Kazuchika et al., "Polyesters", Japan 73 32,194 (See Chemical Abstracts vol. 81 (1974) #26,206u).
Kaeriyama, Kyoji et al., "Effects of Carbon Tetrachloride on Polymerization by Metal Complexes of Beta-Diketones," (See Chemical Abstracts vol. 75 (1971) #152,193b).
Hirooka, Masaaki et al., "Alternating Copolymers", Ger. Offen. 1,949,370, (See Chemical Abstracts vol. 73 (1970) #15,492t).

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