作者:Phuoc Dien Pham、Jürgen Vitz、Cécile Chamignon、Arnaud Martel、Stéphanie Legoupy
DOI:10.1002/ejoc.200900177
日期:2009.7
ionic-liquid-supported tin reagents were synthesized and used in Stille cross-coupling reactions. High yields of biaryls were obtained under low-temperature, solvent-free, ligand-free conditions, with simple purification techniques. Moreover, the tin compound could be recycled up to five times without significant loss of reactivity. An expanded catalytic cycle for the Stille cross coupling reaction is proposed in
合成了新的离子液体负载锡试剂并用于斯蒂勒交叉偶联反应。在低温、无溶剂、无配体的条件下,通过简单的纯化技术获得了高收率的联芳基化合物。此外,锡化合物最多可循环使用五次,而不会显着降低反应性。为了解释在某些反应条件下形成的副产物,提出了 Stille 交叉偶联反应的扩展催化循环。 (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)