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AssigneeRhodia ChiRex, Inc.
InventorsRoger B. Pettman, Richard A. Silva, Jay Francis Larrow, Isabelle Storet
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The present invention includes a process for enantioselective preparation of a non-racemic compound, which is either usable as a fragrance or flavor component or is convertible to a fragrance or flavor component by one or more additional reaction steps. The process includes the step of contacting either a substrate capable of forming a non-racemic compound by an enantioselective reaction and a co-reactant in the presence of a non-racemic catalyst, or a non-racemic or enantiopure substrate and a co-reactant, optionally in the presence of a racemic or non-racemic catalyst. The contacting is carried out at a temperature and length of time that is sufficient to produce the non-racemic compound with high optical purity. The process is used in stereoselective preparation of enantiomerically enriched intermediates useful in the preparation of non-racemic, chiral flavor and fragrance components.
A process for enantioselective preparation of a non-racemic compound usable as a fragrance or flavor component or is convertible to a fragrance or flavor component, said process comprising contacting:
A non-racemic compound, which is usable as a fragrance or flavor component or is convertible to a fragrance or flavor component, prepared by a process comprising contacting:
A non-racemic composition comprising an enantiopure enantiomer of structural formula (1) or (2), or a non-racemic mixture of an enantiomer of structural formula (1) and an enantiomer of structural formula (2):
An optically active epoxide according to the formula:
A process for making a perfuming composition or perfumed article, comprising adding to such composition or article an effective quantity of a non-racemic composition comprising an enantiopure enantiomer of structural formula (1) or (2), or a non-racemic mixture of an enantiomer of structural formula (1) and an enantiomer of structural formula (2):
A perfuming composition or perfumed article, comprising an effective amount of a non-racemic composition comprising an enantiopure enantiomer of structural formula (1) or (2), or a non-racemic mixture of an enantiomer of structural formula (1) and an enantiomer of structural formula (2):
35, A perfuming composition or perfumed article according to claim 34, wherein the perfuming composition or perfumed article is in the form of a perfume, a eau de toilette, an after-shave lotion, a soap, a bath gel, a shower gel, a deodorant, an antiperspirant, a hair-care product, a powder, an air freshener, a cleaning product, a detergent composition or a fabric softener.
A process for making a non-racemic compound usable as a fragrance or flavor component, comprising:
A non-racemic composition comprising an enantiopure (S)-Okoumal, enantiopure (R)-Okoumal or a non-racemic mixture of (S)-Okoumal and (R)-Okoumal.
Dependencies are inferred from the claim text.