Preparation of unsaturated carbonyl compounds

Details Preparation of unsaturated carbonyl compounds Preparation of unsaturated carbonyl compounds

1970-10-05

1976-12-21

Garner, Vivian

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

2604109R, 260485R, 260590E, 260597R, C07C 6730, C07C 6973

Patent

active

039988724

ABSTRACT:
Unsaturated carbonyl compounds, and particularly .alpha.-substituted allylic carbonyl compounds as exemplified by 3-(1-methylallyl)-2,4-pentanedione are prepared by reacting a conjugated diolefinic compound with a compound possessing an active methylene group in the presence of certain catalytic compositions of matter at a temperature of from about -20.degree. C. to about 150.degree. C. The desired products are useful as intermediates in preparing chemical compounds which possess desirable fragrances.

REFERENCES:
bull. of Chem. Soc. of Japan, V.45, 1183-1191 (1972).

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