Synthesis of ethylenically unsaturated compounds from aldehydes

Details Synthesis of ethylenically unsaturated compounds from aldehydes Synthesis of ethylenically unsaturated compounds from aldehydes

1975-07-18

1976-11-16

O'Keefe, Veronica

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260429R, 260666R, 260666A, 260668B, 260669QZ, 260677R, C07C 120

Patent

active

039924726

ABSTRACT:
Certain hydrocarbylidene-niobium or -tantalum complexes react with aldehydes or ketones to produce ethylenically unsaturated compounds. Exemplary is the reaction of trineopentyl(neopentylidene)tantalum with acetone to produce 2,4,4-trimethyl-2-pentene: ##EQU1##

REFERENCES:
patent: 3013068 (1961-12-01), De La Mare et al.
patent: 3156739 (1964-11-01), Horner et al.
patent: 3277202 (1966-10-01), Benson et al.
patent: 3644559 (1972-02-01), Kobylinski et al.
A. WIlliam Johnson, Ylid Chemistry, pp. 132-192, Academic Press, N.Y., 1966.

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