Keto-diesters production

Details Keto-diesters production Keto-diesters production

1988-03-23

1989-01-24

Lone, Werren B.

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

Organic compounds

Carboxylic acid esters

560 54, 562459, 562578, C07C 67313

Patent

active

048002313

ABSTRACT:
Novel keto-diesters are produced by a 2:1 condensation of lower alkyl esters of .alpha.,.beta.-ethylenically unsaturated carboxylic acids and aldehydes having two hydrogen atoms as portions of a formyl group, in the presence of a thiazolium salt as catalyst and a tertiary amine.

REFERENCES:
patent: 2533944 (1950-12-01), Ladd
patent: 3840587 (1974-10-01), Pearson
patent: 4165438 (1979-08-01), Schneider
patent: 4560790 (1985-12-01), Ryu
patent: 4581471 (1986-04-01), Barlow et al.
Organic Syntheses (1987), vol. 63, pp. 26-31.
Chem. Ber. (1976), 109, pp. 3426-3431.
Chem. Ber. (1980), 113, pp. 690-698.
Chem. Ber. (1981), 114, pp. 1226-1233.

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