Process for producing .beta.,.gamma.-unsaturated aldehyde

Details Process for producing .beta.,.gamma.-unsaturated aldehyde Process for producing .beta.,.gamma.-unsaturated aldehyde

1978-05-10

1980-04-01

Lone, Warren B.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

C07C 4720

Patent

active

041961510

ABSTRACT:
Two molecules of mono-substituted acetaldehyde having the following general formula (I) and one molecule of organic halide having the following general formula (II) are reacted in an alkaline aqueous solution in the presence of a phase transfer catalyst whereby a .beta.-.gamma.-unsaturated aldehyde having the general formula (III) as shown in the following reaction scheme (A) is obtained directly from the monosubstituted acetaldehyde without forming an .alpha.,.beta.-unsaturated aldehyde ##STR1## wherein R.sub.1 is straight chain or branched chain alkyl, alkenyl, cycloalkyl or aryl, R.sub.2 is allyl, substituted allyl, propargyl, substituted propargyl, benzyl or substituted benzyl, and X is halogen.

REFERENCES:
patent: 4010270 (1977-03-01), Hall et al.
Dietl et al., "Tetrahedron Letter", No. 15, pp. 1273-1275,(1973).

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