作者:Shengyong You、Jianying Li、Mingzhong Cai
DOI:10.1016/j.tet.2009.06.072
日期:2009.8
gives highly regio- and stereoselectively (E)-α-stannylvinyl sulfones 2 in high yields. (E)-α-Stannylvinyl sulfones 2 are new difunctional group reagents which undergo Stille coupling reactions with acyl chlorides 3 to afford stereoselectively (Z)-α-arylsulfonyl-α,β-unsaturated ketones 4 in good yields. A one-pot stereoselective synthesis of (Z)-α-arylsulfonyl-α,β-unsaturated ketones 4 has also been achieved
室温下钯催化的乙炔砜1在苯中的加氢苯乙烯基化反应可高产率地产生高区域选择性和立体选择性(E)-α-锡烷基乙烯基砜2。(E)-α-苯乙烯基乙烯基砜2是新的双官能团试剂,其与酰氯3进行Stille偶联反应,从而以良好的产率提供立体选择性的(Z)-α-芳基磺酰基-α,β-不饱和酮4。还通过在温和条件下炔属砜1的串联加氢苯乙烯基化-斯蒂尔偶联反应实现了(Z)-α-芳基磺酰基-α,β-不饱和酮4的一锅立体选择合成。