formation. To date, the substrate scope of this reaction has predominantly been limited to sp2–sp2 coupling reactions. Herein, the palladium‐catalysed Hiyama type cross‐coupling of vinyldisiloxanes with benzylic and allylic bromides, chlorides, tosylates and mesylates is reported. A wide variety of functional groups were tolerated, and the synthetic utility of the methodology was exemplified through
桧山交叉偶联反应是一种强有力的碳-碳键形成方法。迄今为止,该反应的底物范围主要限于 sp 2 -sp 2偶联反应。在此,报道了
钯催化的 Hiyama 型
乙烯基二
硅氧烷与苄基和烯丙基
溴化物、
氯化物、甲
苯磺酸盐和
甲磺酸盐的交叉偶联。耐受多种官能团,该方法的合成效用通过细胞毒性
天然产物 bussealin A 的有效全合成来例证。此外,在两个癌
细胞系中评估了 bussealin A 的抗增殖能力。