On prepare des phosphonamides derivees du benzodiazaphosphole et on effectue l'olefination asymetrique de plusieurs cyclohexanones substituees
制备苯并二氮杂磷衍生物的膦酰胺衍生物等对烯化不对称环己酮取代物的影响
Versatile synthesis of alicyclic and acyclic compounds with alternate and remote C-methyl substitution patterns via asymmetric sequential olefination and ene reactions
作者:Stephen Hanessian、Serge Beaudoin
DOI:10.1016/0040-4039(93)88009-8
日期:1992.12
Treatment of enantiomerically pure alkyl cyclohexane ethylidene derivatives with 2,3-di-O-benzyl D-and L-glyceraldehyde and related aldehydes in the presence of Lewis acids leads to enantiomerically pure or enriched branched alkylcyclohexenes. These can be oxidized to acyclic motifs with a predetermined C-methyl substitution pattern.