Preparation of 4-acyloxy-2-methyl-crotonaldehydes

Details Preparation of 4-acyloxy-2-methyl-crotonaldehydes Preparation of 4-acyloxy-2-methyl-crotonaldehydes

1979-09-25

1981-08-18

Garner, Vivian

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

Organic compounds

Carboxylic acid esters

562606, 562607, 562609, C07C 6729, C07C 67297, C07C 69025, C07C 69145, C07C 6924

Patent

active

042847966

ABSTRACT:
A process for the preparation of a 4-acyloxy-2-methyl-crotonaldehyde of the formula ##STR1## where R is hydrogen or an aliphatic radical of 1 to 5 carbon atoms, by reacting a 1,1,4-triacyloxy-2-methyl-but-2-ene of the formula ##STR2## where R.sup.1 and R.sup.2 are each hydrogen or an aliphatic radical of 1 to 5 carbon atoms, with water in the presence of a carboxylic acid of the formula

REFERENCES:
patent: 3639437 (1972-02-01), Fischer et al.
Chemische Berichte, 90, 1957, pp. 187-193.
Houben-Weyl, Methoden Der Organ. Chemie, vol. 5/1b, pp. 570-672.

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