Quest International B.v.

Unilever Patent Holdings B.v.

Charles S Sell

David Munro

Christopher P Newman

Karen Jane Rossiter

Lewis acid-catalyzed reaction of an alkene, including cycloalkenes, with an epoxide to provide an aldehyde which may be reduced to the corresponding alcohol. The reaction products may be used to provide perfumes or perfume products.

Reaction of alkenes with epoxides, the products thereof and their use as fragrance compounds

Fragrance material

The invention concerns 14-methyl-hexadecen-11-olide, 14-methyl-hexadecen-12-olide and 14-methyl-hexadecanolide and the use of these compounds as fragrance materials with musk odour. The invention also concerns 14-methyl-12-hydroxy-hexasecanolide, which is an intermediate in a novel process to prepare these compounds.

14-methyl-hexadecenolide and 14-methyl-hexadecanolide

Novel perfumery chemicals having a cyclic acetal structure and providing a variety of perfume notes, especially amber, are described. They are prepared by reacting specified diols and aldehydes/ketones.

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Aldington, United Kingdom

Charles S Sell