cas 18444-79-6, 6,10-dimethyl-3-propan-2-ylidene-spiro[4.5]dec-9-en-8-one | Articles data ｜lookchem

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18444-79-6

Articles about 18444-79-6Total 3 be found

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Structure/odor relationships of (-)- and (+)-β-vetivone, and their demethyl derivatives: Short communication
(-)-β-Vetivone ((-)-3a), one of the main constituents of vetiver oil, was submitted to a structure/odor relationship study. The influence of the Me groups at the cyclohexenone ring and of the configuration on the odor was examined. Detailed 1H- and 13C-NMR-spectroscopic data were collected, and the absolute configurations were determined by CD methods.
Spreitzer, Helmut,Piringer, Iris,Holzer, Wolfgang,Widhalm, Michael
p. 2292 - 2299
(2007/10/03)

An Asymmetric Total Synthesis of Fragrant Spirodecane Sesquiterpene (-)-β-Vetivone via an Enantiomerically Pure Vinylic Sulfoxide
A nonenzymatic asymmetric synthesis of (R)-(+)-3-methylpentanolide 4 in 93percent enantiomeric purity has been achieved involving novel methyltitanium triisopropoxide conjugate methyl addition to enantiomerically pure p-anisylpentenolide sulfoxide (S)-(+)-5b.One step, five-membered ring spiroannulation then formed a quaternary carbon center in a stereospecific fashion to give spiroheterocycle (-)-3.Spiroheterocycle (-)-3 was converted directly into natural spirocarbocycle (-)-β-vetivone, 1, constituting the third asymmetric total synthesis of this commercially valuable fragrant sesquiterpene.
Posner, Gary H.,Hamil, Terence G.
p. 6031 - 6035
(2007/10/02)

A Facile Synthesis of (-)-β-Vetivone
A short step synthesis of the title compound from (R)-(-)-5-trimethylsilyl-2-cyclohexenone via stereoselective intramolecular alkylation is described.
Asaoka, Morio,Takenouchi, Kazuya,Takei, Hisashi
p. 1225 - 1226
(2007/10/02)

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Chemical Properties

Melting Point: 44-46°
Boiling Point: 329.5°Cat760mmHg
Flash Point:146.3°C
Density: 0.98g/cm³
Vapor Pressure: 0.000176mmHg at 25°C
Refractive Index: nD20 1.5309 (liquid, supercooled); nD45 1.5216
PSA: 17.07000
LogP: 4.04830

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