作者:Molhm Nassir、Michał Ociepa、Hai-Jun Zhang、Lauren N. Grant、Bryan J. Simmons、Martins S. Oderinde、Yu Kawamata、Anthony N. Cauley、Michael A. Schmidt、Martin D. Eastgate、Phil S. Baran
DOI:10.1021/jacs.3c05655
日期:2023.7.19
The first practical, fully stereoselective P(V)-radical hydrophosphorylation is presented herein by using simple, limonene-derived reagent systems. A set of reagents have been developed that upon radical initiation react smoothly with olefins and other radical acceptors to generate P-chiral products, which can be further diversified (with conventional 2e– chemistry) to a range of underexplored bioisosteric
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.
CrIII(salen) catalysed asymmetric ring opening of monocyclic terpene-epoxides
作者:Bart M.L Dioos、Pierre A Jacobs
DOI:10.1016/s0040-4039(03)01052-9
日期:2003.6
The racemic Cr-III(salen) complex was found to be an efficient catalyst for the asymmetric ring opening (ARO) with TMSN3 of cyclic 1,2-epoxy-terpenes bearing C-4-substituents. (C) 2003 Elsevier Science Ltd. All rights reserved.