作者:Aditya L. Gottumukkala、Kiran Matcha、Martin Lutz、Johannes G. de Vries、Adriaan J. Minnaard
DOI:10.1002/chem.201200694
日期:2012.5.29
An efficient palladium catalyst is presented for the formation of benzylic quaternary stereocenters by conjugate addition of arylboronic acids to a variety of β,β‐disubstituted carbocyclic, heterocyclic, and acyclic enones. The catalyst is readily prepared from PdCl2, PhBOX, and AgSbF6, and provides products in up to 99 % enantiomeric excess, with good yields. Based on this strategy, (−)‐α‐cuparenone
通过将芳基硼酸共轭加成到各种β,β-二取代的碳环,杂环和无环烯酮上,提出了一种有效的钯催化剂,用于形成苄基季立体中心。该催化剂易于由PdCl 2,PhBOX和AgSbF 6制备,并以高达99%的对映体过量提供产物。基于此策略,仅需两个步骤即可制备(-)-α-cuparenone。