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US 3,975,445 AGranted
Novel polyene compounds and process therefor
AssigneeHoffmann-La Roche Inc.
InventorsFrank Kienzle, Hans Johann Mayer
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Abstract
A novel process for the preparation of polyene compounds useful as coloring agents in foods, cosmetics, and pharmaceutical preparations. Novel polyenes are also disclosed. The present invention relates to polyene compounds. More particularly, the invention is concerned with novel carotenoid polyene compounds, derivatives thereof and a process for their manufacture.
Claims4
A compound of the formula:
- ##SPC21##
- wherein X is an aryl group and Y is an anion of an acid selected from the group consisting of Cl.sup.-, Br.sup.-, R.sub.9 COO.sup.-, wherein R.sub.9
Dependencies are inferred from the claim text.