Process for the preparation of polyene aldehydes

Details Process for the preparation of polyene aldehydes Process for the preparation of polyene aldehydes

1987-03-11

1988-07-26

Lone, Werren B.

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

Organic compounds

Oxygen containing

C07C 4542

Patent

active

047601930

ABSTRACT:
Polyene aldehydes are made by reaction of a carbonyl compound of formula: ##STR1## in which R denotes a hydrocarbon radical and R' denotes hydrogen or alkyl, with a metal derivative of a halogen compound of formula: ##STR2## in which X denotes halogen (preferably bromine), R.sub.3 is alkyl, and either R.sub.1 denotes hydrogen and R.sub.2 denotes an alkoxy radical identical with OR.sub.3 or R.sub.1 and R.sub.2 together form a bond, followed by hydrolysis of the product obtained.

REFERENCES:
patent: 2734091 (1956-02-01), Londergan
Tetrahedron Letters, no. 8, 1978, pp. 717-720, Pergamon Press, GB. R. H. Wollenberg: Efficient Conversion of Carbonyl Compounds to Conjugated Dienals, pp. 718-719.

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