Process for preparation of 2-(dialkoxymethyl)-carboxylic acid es

Details Process for preparation of 2-(dialkoxymethyl)-carboxylic acid es Process for preparation of 2-(dialkoxymethyl)-carboxylic acid es

1994-11-14

1996-04-23

Dees, Jose G.

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

Organic compounds

Carboxylic acid esters

560184, 560187, C07C 69708

Patent

active

055105122

ABSTRACT:
Process for the preparation of 2-(dialkoxymethyl)carboxylic acid esters of the formula I ##STR1## by oxidizing .beta.-acetalization of acrylic acid esters with alcohols R.sup.1 OH, wherein R.sup.1 has the meaning mentioned, in the presence of oxygen as the oxidant and of a catalyst system based on one or more metals of the platinum group and/or compounds thereof and of a copper compound, comprises carrying out the reaction at a temperature of up to 80.degree. C. and in which the catalyst system contains 1 to 4 equivalents of anions, based on the sum of the metal atoms and metal cations, of which at most 3 equivalents are halide ions, the halogen having a molecular weight of at least 35.

REFERENCES:
patent: 2535012 (1950-12-01), Croxall et al.
patent: 4501705 (1985-02-01), Matsui et al.
patent: 4534910 (1985-08-01), Peeters et al.
patent: 5130435 (1992-07-01), Hoelderich et al.
Oxidations of Olefins with Alcoholic Palladium(II) Salts, W. G. Lloyd et al, Jan. 31, 1969, Journal Organic Chemistry, vol. 34, No. 12, p. 3949.

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