Process for the preparation of vitamin A from sulphones

Details Process for the preparation of vitamin A from sulphones Process for the preparation of vitamin A from sulphones

1977-07-25

1979-11-20

Thomas, Jr., James O.

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

Organic compounds

Carboxylic acid esters

260607AR, 568824, 585351, C07C 6914, C07C 6924

Patent

active

041752058

ABSTRACT:
Vitamin A alcohol and its lower alkanoic esters are prepared by desulphonation of corresponding sulphones with a solid potassium alcoholate of a primary or secondary lower alcohol at 10.degree. to 50.degree. C. in an anhydrous liquid hydrocarbon.

REFERENCES:
patent: 3803252 (1974-04-01), Chabardes et al.
patent: 3865878 (1975-02-01), Chabardes et al.
patent: 3960967 (1976-06-01), Olsen et al.
patent: 4048234 (1977-09-01), Chabardes et al.
Manchand, P. S., et al., "Synthesis of Vitamin A via Sulfones", Helvetica Chimica Acta, vol. 59, pp. 387-396, (March 1976).

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