Title:
METHOD FOR INTRODUCTION CARBONYL GROUP INTO CYCLOHEXEN RING
Document Type and Number:
Japanese Patent JPS5398937
Kind Code:
A
Abstract:
A process for introducing an allyl-positioned carbonyl group into a 2,6,6-trimethylcyclohexene ring which carries a polyenyl radical in the 1-position, by oxidizing the ring with a halogen(V)-oxyacid or a salt of such an acid, and the new oxo compounds obtainable by the said process, which may be used as dyes for foodstuffs or cosmetics. The oxidation is carried out in the presence of a catalyst and of an inert diluent or solvent, in an acid medium. Suitable catalysts are bromine and iodine and the oxides of elements of groups Va, VIa, VIIa and VIII of the periodic table.
Inventors:
HAAGEN IEDEITSUKE
YOAHIMU PAUSUTO
YOAHIMU PAUSUTO
Application Number:
JP992978A
Publication Date:
August 29, 1978
Filing Date:
February 02, 1978
Export Citation:
Assignee:
BASF AG
International Classes:
B01J23/00; B01J23/16; C07B61/00; C07C45/00; C07C45/30; C07C49/00; C07C49/647; C07C67/00; C07C401/00; C07C403/00; C07C403/02; C07C403/08; C07C403/12; C07C403/14; C07C403/16; C07C403/24; C09F5/08; C11C3/00; C07C; (IPC1-7): B01J23/16; C07C175/00