Process for the preparation of unsaturated sulphones

Details Process for the preparation of unsaturated sulphones Process for the preparation of unsaturated sulphones

1980-10-08

1982-08-10

Lee, Mary C.

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

Organic compounds

Sulfur containing

C07C14704

Patent

active

043439527

ABSTRACT:
The present invention relates to a process for the preparation of unsaturated sulphones. It relates to a process in which unsaturated sulphones are prepared by sulphonation of the corresponding diene compound in the presence of a palladium catalyst, the sulphonating agent being a sulphinic acid or a sulphinate in the presence of an acid. The sulphones obtained are synthesis intermediates, particularly in the preparation of vitamins A and E.

REFERENCES:
patent: 2427925 (1947-09-01), Samaniego et al.
patent: 3267150 (1966-08-01), Moore et al.
patent: 3397242 (1968-08-01), Klein
patent: 3848000 (1974-11-01), Charbardes et al.
patent: 3850991 (1974-11-01), Charbardes et al.
patent: 3876707 (1975-04-01), Menet
P. D. Magnus, Tetrahedron, vol. 33, pp. 2019-2045 (1977).

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