Copper-Catalyzed SiB Bond Activation in Branched-Selective Allylic Substitution of Linear Allylic Chlorides
作者:Devendra J. Vyas、Martin Oestreich
DOI:10.1002/anie.201004658
日期:2010.11.2
The harder they come, the better they leave! Chloride is superior to all common leaving groups in the γ‐selective allylic substitution of linear precursors. This approach involves a novel copper‐catalyzed SiB bond activation (see scheme; γ/α≥98:2, 7 examples; Si=SiMe2Ph and B=Bpin with pin=pinacolato).
他们来得越难,就越会离开!在线性前体的γ-选择性烯丙基取代中,氯化物优于所有常见的离去基团。这种方法涉及一种新型的铜催化的Si 乙键活化(参见方案;γ/α≥98:2,7例子;硅=森达2 P h和乙= BPIN与销=频哪醇)。