Determination of the Absolute Configuration of Quercivorol, (1S,4R)-p-Menth-2-en-1-ol, an Aggregation Pheromone of the Ambrosia BeetlePlatypus quercivorus(Coleoptera: Platypodidae)
Der stereochemische verlauf der alkalischen epoxydation von α,β-ungesättigten carbonylverbindungen der cyclischen monoterpenreihe
作者:E. Klein、G. Ohloff
DOI:10.1016/s0040-4020(01)99364-0
日期:1963.1
In the cyclic monoterpenes, the base-catalysed epoxidation1 of endocyclic double bonds which are in conjugation with carbonyl groups follows a highly stereoselective course resulting in a single epimer. Exocyclic double bonds are attacked from both sides in this reaction.
Enantioselective total syntheses of katsumadain and katsumadain C were achieved concisely through a biomimetic approach. Assembly of styryl-2-pyranone (3) and monoterpene 6 via acid-promoted regio- and stereoselective C–C bond formation afforded katsumadain (2), which underwent the photoinduced [2 + 2] dimerization in a head-to-tail mode to furnish katsumadain C (1).
Synthesis of Neocannabinoids Using Controlled Friedel–Crafts Reactions
作者:Alexandra M. Millimaci、Richard V. Trilles、James H. McNeely、Lauren E. Brown、Aaron B. Beeler、John A. Porco
DOI:10.1021/acs.joc.3c01362
日期:2023.9.15
Experimental and computational studies probing the mechanism of neocannabinoid synthesis from cyclic allylicalcohol and substituted resorcinol reaction partners provide understanding of the kinetic and thermodynamic factors driving regioselectivity for the reaction. Herein, we present the reaction scope for neocannabinoid synthesis including the production of both normal and abnormal isomers under both kinetic
Inagaki, Takashi; Ueda, Hiroo, Agricultural and Biological Chemistry, 1987, vol. 51, # 10, p. 2635 - 2640
作者:Inagaki, Takashi、Ueda, Hiroo
DOI:——
日期:——
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.