Process for Conducting an Organic Reaction in Ionic Liquids
申请人:Bourgeois Daniel Martin
公开号:US20110152566A1
公开(公告)日:2011-06-23
The present disclosure describes processes for producing cyclohexenes using Lewis acidic ionic liquids comprising the steps of providing to a reactor an α,β-unsaturated carbonyl dienophile, providing to the reactor a 1,3-diene, providing a Lewis acidic ionic liquid to the reactor; and reacting the α,β-unsaturated carbonyl dienophile with 1,3-diene to form a substituted cyclohexene product. The α,β-unsaturated carbonyl dienophile can be mesityl oxide, the 1,3-diene can be piperylene; and the Lewis acidic ionic liquid can be AlCl
3
:[C
2
mim]Cl; AlCl
3
:[C
8
mim]Cl; or mixtures thereof.
(1S,6R)-2,2,6-Trimethylcyclohexyl methyl ketone and/or (1R,6S)-2,2,6-trimethylcyclohexyl methyl ketone, process for producing the same, and perfume composition containing the same
申请人:——
公开号:US20020042356A1
公开(公告)日:2002-04-11
Trans-2,2,6-trimethylcyclohexyl methyl ketone, including (1S,6R)-2,2,6-trimethylcyclohexyl methyl ketone represented by the formula (1a):
1
and (1R,6S)-2,2,6-trimethylcyclohexyl methyl ketone represented by the formula (1b):
2
are useful components in a perfume composition. A process for producing the same is also described. A unique eucalyptus, mint-like and white floral perfume material is provided using the ketone compounds disclosed in the present invention. The process of the present invention produces the optically active ketone compounds having optical purity up to at least 98.0% e.e.
2,2,6-三甲基环己基甲基酮,包括由化学式表示的(1S,6R)-2,2,6-三甲基环己基甲基酮(1a)和由化学式表示的(1R,6S)-2,2,6-三甲基环己基甲基酮(1b)是香水配方中有用的成分。本文还描述了一种生产这些成分的方法。使用本发明中披露的酮化合物提供了一种独特的桉树、薄荷和白色花香调的香料原料。本发明的方法产生光学活性的酮化合物,其光学纯度至少可达98.0% e.e.
Beta, gamma-unsaturated delta-keto esters
申请人:Givaudan Roure (International) S.A.
公开号:EP0953562A1
公开(公告)日:1999-11-03
The beta,gamma-unsaturated delta-keto esters of formula I are useful as precursors for the delivery of organoleptic compounds, especially for flavours, fragrances and masking agents, and/or of antimicrobial compounds.
The invention relates to 2-,5-,6-,7-,8-substituted oct-2-en-4-ones, to a process for delivering these compounds as a fragrance, an aroma, or a flavoring, and to fragrance and aroma compositions prepared therewith.
1-CROTONOYL-2,2,6-TRIMETHYLCYCLOHEXANE OCCURS IN FOUR STEREOISOMERIC FORMS. In particular the trans, E isomer has interesting organoleptic properties and is useful in the preparation of perfume and flavoring compositions. Processes for preparing the stereoisomers, in a pure form or as mixtures, are described.