Process for the preparation of .alpha.,.beta.-unsaturated ketone

Details Process for the preparation of .alpha.,.beta.-unsaturated ketone Process for the preparation of .alpha.,.beta.-unsaturated ketone

1983-11-21

1984-10-30

Trousof, Natalie

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

Organic compounds

Sulfur containing

568 43, 568314, 568338, 568386, 568390, 502226, 502227, 502229, 502231, 549 78, 549498, C07C 4560

Patent

active

044801327

ABSTRACT:
Disclosed is a process for the preparation of .alpha.,.beta.-unsaturated ketones containing a 2-oxopropylidene moiety by the reaction of an aldehyde with a 2,2-dialkyl-4-methyl-6-keto-1,3-dioxene in the presence of a catalytic amount of certain metallic halides.

REFERENCES:
patent: 2108427 (1938-02-01), Boese
patent: 3024249 (1962-03-01), W/o/ llner
patent: 3989737 (1976-11-01), Sawaki et al.
patent: 4059634 (1977-11-01), Smith, Jr.
patent: 4249937 (1981-02-01), Iwataki et al.
patent: 4355184 (1982-10-01), Kaku et al.
Hurd et al., J. Am. Chem. Soc., 61, 3355, (1939).
Carroll et al., J. Am. Chem. Soc., 74, 6305, (1952).

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