Method for the preparation of alkoxymethylene compounds of aceti

Details Method for the preparation of alkoxymethylene compounds of aceti Method for the preparation of alkoxymethylene compounds of aceti

1985-04-19

1987-05-12

Trousof, Natalie

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

Organic compounds

Carboxylic acid esters

C07C 69732, C07C 69734

Patent

active

046652183

ABSTRACT:
Disclosed is a method for preparation of alkoxymethylene compounds, especially methoxymethylene compounds, from substituted or unsubstituted acetic acid alkyl esters, especially methyl esters, from the corresponding hydroxymethylene compounds or their alkali salts, by reaction with excess alkanol, especially methanol, in the presence of HCl and a water-binding agent. Preferred are water-binding agents which form stable reaction products with water.

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patent: 4503074 (1985-03-01), Friedman
Dominte et al., Chemical Abstracts, vol. 99, No. 104776t, (1983).
Fattore et al., Chemical Abstracts, vol. 94, No. 174325r, (1981).
Stecher et al., The Merck Index of Chemicals and Drugs, seventh ed., Rahway, N.J., p. 8, (1960).

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