Ni- and Pd-Catalyzed Synthesis of Substituted and Functionalized Allylic Boronates
作者:Ping Zhang、Ian A. Roundtree、James P. Morken
DOI:10.1021/ol3001552
日期:2012.3.16
Two highly efficient and convenient methods for the synthesis of functionalized and substituted allylic boronates are described. In one procedure, readily available allylic acetates are converted to allylic boronates catalyzed by Ni/PCy3 or Ni/PPh3 complexes with high levels of stereoselectivity and in good yields. Alternatively, the borylation can be accomplished with commercially available Pd catalysts [e.g., Pd-2(dba)(3), PdCl2, Pd/C], starting with easily accessed allylic halides.