Document Type and Number:
Japanese Patent JPS5323827
Kind Code:
B2
Abstract:
1,5-Dimethyl-hexa-1,5-dienylene compounds, and especially Vitamin A and derivatives thereof, are made by desuphonylating with a basic reagent a sulphone of the formula: in which the sulphonyl group -SO2R replaces a hydrogen atom on carbon atom (a) or (b), R represents a phenyl or napthyl group, A is 2-(2,6,6-trimethylcyclohex-1-enyl)ethenyl, and Q is -CH2OH or an ether or ester thereof, CHO, or an acetal group.
Application Number:
JP1279073A
Publication Date:
July 17, 1978
Filing Date:
January 31, 1973
Export Citation:
International Classes:
C09B61/00; C07C29/00; C07C29/132; C07C67/00; C07C313/00; C07C315/04; C07C317/00; C07C317/04; C07C317/08; C07C317/10; C07C317/14; C07C317/18; C07C317/24; C07C317/44; C07C401/00; C07C403/00; C07C403/22; C07C403/24