Invention Grant
US09593092B2 Pyran derivatives, their preparation and use thereof in perfumery 有权
吡喃衍生物,其在香料中的制备和用途

Pyran derivatives, their preparation and use thereof in perfumery
Abstract:
A process of preparing a compound of formula (I) wherein R represents a linear or branched C5 alkyl group, as well as the use of such compounds in a fragrant and/or flavoring composition.
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