Studies on Hydrozirconation of 1-Alkynyl Sulfoxides or Sulfones and the Application for the Synthesis of Stereodefined Vinyl Sulfoxides or Sulfones
作者:Xian Huang、Dehui Duan、Weixin Zheng
DOI:10.1021/jo0111154
日期:2003.3.1
Z-beta-sulfonyl alpha,beta-unsaturated ketones, and Z-beta-alkynyl vinyl sulfones. Although the reaction mechanisms are still not clear, the neighboring group participation of the sulfinyl or sulfonyl group may be playing an important role in this unique hydrozirconation reaction.
1-炔基亚砜或砜与Cp2Zr(H)Cl在室温下的氢化锆反应主要得到具有良好区域选择性的Z-β-锆化乙烯基亚砜或砜。与1-炔基亚砜相比,1-炔基砜的加氢锆反应显示出巨大的合成潜力,从而可有效制备Z-β-卤代砜,Z-β-磺酰基α,β-不饱和酮和Z-β-炔基乙烯基砜。尽管反应机理仍不清楚,但是亚磺酰基或磺酰基的相邻基团的参与可能在这种独特的加氢锆反应中起重要作用。