The Stille cross-coupling reaction between a vinylcyclopropylstannane and iodobenzene or phenol triflate provides an expedious route to 1,2-phenylvinylcyclopropanes. However, similar coupling reactions using ortho-substituted aromatic substrates also lead to butylaromatic products, resulting from competitive sp³-sp² coupling reactions.
乙烯基环丙基
锡烷与
碘苯或三酸
苯酚之间的 Stille 交叉偶联反应为 1,
2-苯基乙烯基环丙烷提供了一条捷径。不过,使用正交取代的芳香族底物进行的类似偶联反应也会导致丁
芳烃产物,这些产物来自竞争性 sp³-sp² 偶联反应。