Process for preparing olefinic aldehydes and chemical intermedia

Details Process for preparing olefinic aldehydes and chemical intermedia Process for preparing olefinic aldehydes and chemical intermedia

1985-03-21

1986-02-18

Lone, Werren B.

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

Organic compounds

Oxygen containing

568437, 568446, 568459, 568466, 568467, 568490, 570182, 570186, 570189, 570193, 570216, 570237, C07C 4558

Patent

active

045714380

ABSTRACT:
A process for the preparation of olefinic aldehydes and intermediates is disclosed. The condensation of an .alpha.,.omega.-dihalide with a metal acetylide gives an acetylenic halide which can be reduced to give an olefinic halide, then oxidized to give the desired olefinic aldehyde or the acetylenic halide can be oxidized first to give an acetylenic aldehyde and then reduced to give the desired olefinic aldehyde.

REFERENCES:
patent: 3971711 (1975-11-01), Roelofs et al.
patent: 4212830 (1980-07-01), Wiesner
patent: 4273944 (1981-06-01), Ohno et al.
Mori "The Total Synthesis of Natural Products", vol. 4, 1981 pp. 1, 8, 9, 10, and 11.
Synthesis, Dec. 1977, pp. 817-836, Rossi.
Tetrahedron, vol. 33, pp. 1845-1889, (1977), Henrick.

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