83258-27-9Relevant academic research and scientific papers
Synthesis of (E)-1-Propenyl Ketones from Carboxylic Esters and Carboxamides by Use of Mixed Organolithium-Magnesium Reagents
Fehr, Charles,Galindo, Jose
, p. 228 - 235 (2007/10/02)
The novel reagents formed by combination of allylmagnesium chloride and a strong non-nucleophilic lithium base (LiNR2) convert non- or slowly enolizable carboxylic esters or carboxamides into 2-propenyl ketones which are protected from further reaction by their in situ conversion into enolates.This modified Grignard reaction is applied to efficient syntheses of α-damascone, β-damascone, β-damascenone, and various other (E)-1-propenyl ketones.
Stereochemistry of an Ene Reaction involving 1,7-Dienes; Bicyclononanes from (3-Cyclohexenyl)diallylcarbinols
Thomas, Alan F.,Lander-Schouwey, Marina
, p. 191 - 200 (2007/10/02)
(3-Cyclohexenyl)diallylcarbinols undergo a thermal retro-ene reaction to give crotonylcyclohexenes at ca. 200 degC.A side-reaction is an ene reaction to give bicyclononanes.These become the main products above 300 degC.The stereochemistry of 2-allyl-1,4,6-trimethylbicyclo-6-nonen-2-ols and related compounds is discussed, and a case is described in which the allyl group is not freely rotating.
Alicyclic unsaturated compounds, their preparation and use of same as perfume ingredients
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, (2008/06/13)
New alicyclic unsaturated compounds useful as perfume ingredients and perfume compositions containing same. The new compounds have formula STR1 possessing a methyl group attached to the carbon atom at position 3 or 4 of the ring and one double bond in one of the positions of the carbonyl side chain as indicated by the dotted line. Process for their preparation from new hydroxy compounds of formula STR2
