- Perfume base composition
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The present invention relates to a perfume base composition comprising a carrier and a benzyl-substituted cyclohexanol having formula (1), wherein the dashed line denotes an optional double bond and the benzyl group is in the 2-, 3- or 4-position of the c
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- Rearrangement of allylic and propargylic alcohols catalyzed by the combined use of tetrabutylammonium perrhenate(VII) and p-toluenesulfonic acid
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Allylic rearrangement and/or dehydration reaction of allylic alcohols proceeds smoothly by the use of catalytic amounts of tetrabutylammonium perrhenate and p-toluenesulfonic acid hydrate. Treatment of propargylic alcohols with the catalysts at room temperature affords the rearranged products, α,β-unsaturated carbonyl compounds, while β,γ-unsaturated ketones are obtained as main products by the reaction in refluxing 1,2-dichloroethane. The application of this catalytic system is also described for the preparation of some synthetic intermediates.
- Narasaka,Kusama,Hayashi
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p. 2059 - 2068
(2007/10/02)
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