A New Method for Constructing Quaternary Carbon Centres: Tandem Rhodium-Catalysed 1,4-Addition/Intramolecular Cyclisation
作者:Jérôme Le Nôtre、David van Mele、Christopher G. Frost
DOI:10.1002/adsc.200600355
日期:2007.2.5
1′-alkenes using arylzinc chlorides is described. The simple one-step synthesis of substituted cyclopentanone and cyclohexanone derivatives is performed from acyclic precursors using relatively low catalyst loadings under mild conditions. A new quaternary carbon centre is created during the cyclisation step.
描述了使用芳基氯化锌有效地串联铑催化的1,1'-烯烃的1,4-加成/环化反应。取代的环戊酮和环己酮衍生物的简单一步合成是在较温和的条件下,使用相对较低的催化剂负载量,从无环前体进行的。在环化步骤中会创建一个新的四级碳中心。