A tandem Cu(I)-catalyzed conjugate addition of Kharasch reagents/diastereoselective protonation of (E)-α-trialkylsilyl-β-alkyl(aryl)-α,β-unsaturated esters afforded the saturated products with d.r. values of >20:1 favoring the anti-diastereomer in modest to excellent isolated yields.
的串联的Cu(I)催化的共轭加成Kharasch试剂/的(非对映选择性质子化ë)-α -三烷基甲
硅烷-β -烷基(芳基)-α,得到饱和产物具有> 20博士值β -不饱和酯:1以适中至优异的分离产率偏爱抗-非对映异构体。