Abstract The most polar fraction of the essential oil of Chenopodium multifidum is made up of three p -menth-5-en-1,2-diols diastereoisomers. Their absolute configurations have been assigned by spectral methods and by hydrogenation to the 1-hydroxycarvomenthols of known stereochemistry.
Synthesis of (1S,4R)-4-isopropyl-1-methyl-2-cyclohexen-1-ol, the aggregation pheromone of the ambrosia beetle Platypus quercivorus, its racemate, (1R,4R)- and (1S,4S)-isomers
作者:Kenji Mori
DOI:10.1016/j.tetasy.2006.07.030
日期:2006.8
(S)-Perillyl alcohol was converted to (R)-cryptone (91.5-93% ee) in six steps, which was then treated with methyllithium to give (1S,4R)-4-isopropyl-1-methyl-2-cyclohexen-1-ol, the aggregation pheromone of the ambrosia beetle Platypus quercivorus. The racemic pheromone was also prepared by methylation of (+/-)-cryptone. Both (1R,4R)- and (1S,4S)-isomers (98% ee) of the pheromone were synthesized from the enantiomers of dihydrolimonene oxide. (c) 2006 Elsevier Ltd. All rights reserved.
842. Stereochemistry of cyclohexane derivatives. Part IV. Some secondary tertiary 1 : 2-diols
作者:P. R. Jefferies、B. Milligan
DOI:10.1039/jr9560004384
日期:——
Yur'ev,V.P. et al., Journal of general chemistry of the USSR, 1975, vol. 45, p. 2269 - 2273