The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 24, 1980
Filed:
Jan. 10, 1978
Applicant:
Inventors:
Hagen Jaedicke, Ludwigshafen, DE;
Joachim Paust, Neuhofen, DE;
Assignee:
BASK Aktiengesellschaft, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09F / ; C11C / ; C07C / ; C07C / ;
U.S. Cl.
CPC ...
260410 ; 260413 ; 560126 ; 560259 ; 568378 ; 568367 ; 568363 ; 568356 ; 568347 ; 568348 ;
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.