Unsaturated compounds and their preparation

Details Unsaturated compounds and their preparation Unsaturated compounds and their preparation

1984-11-16

1986-10-07

Trousof, Natalie

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260413, 560205, 562598, C07C 69738, C07C 69587, C07C 5976, C07C 5704

Patent

active

046158383

ABSTRACT:
Unsaturated compounds of the formula: ##STR1## in which: Q denotes alkyloxycarbonyl, cyano or formyl, R.sub.1 denotes a saturated or unsaturated aliphatic radical, R.sub.2 denotes a hydrogen atom or an alkyl radical, R.sub.3 denotes a hydrogen atom or an aliphatic radical and R.sub.4 denotes a hydrogen atom or a saturated or unsaturated aliphatic radical which may be substituted, are useful as intermediates in the synthesis of vitamin E.

REFERENCES:
patent: 3032491 (1962-05-01), Barton et al.
patent: 3781313 (1973-12-01), Julia
patent: 4076739 (1978-02-01), Chan et al.
patent: 4116955 (1978-09-01), Ichikawa et al.
patent: 4221742 (1980-09-01), Cardenas et al.
patent: 4380675 (1983-04-01), Gebauer et al.
The Journal of the American Chemical Society, vol. 97, No. 17,20 aout 1975, The American Chemical Society, Columbus, Ohio (US), M. A. Schexnayder et al.; "Systematic Structural Modifications in the Photochemistry of Beta, Gamma-Unsaturated Ketones, II, Acyclic Olefins and Acetylenes", pp. 4825-4836.

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