Palladium-catalyzed cross-coupling reaction of alkenyl bromides with potassium alkyltrifluoroborates
作者:Gary A. Molander、Jungyeob Ham、Dave G. Seapy
DOI:10.1016/j.tet.2006.10.088
日期:2007.1
The Suzuki-Miyaura-type cross-coupling reaction of potassium alkyltrifluoroborates with various alkenyl bromides in the presence of 10 mol % of PdCl(2)(dppf).CH(2)Cl(2) and 3.0 equiv of Cs(2)CO(3) in aqueous toluene at 80 degrees C provided the desired compounds in 49-95% yields. A variety of functional groups in the potassium alkyltrifluoroborates were tolerated under the basic conditions.
在10摩尔%的PdCl(2)(dppf).CH(2)Cl(2)和3.0当量的Cs(2)CO存在下,烷基三氟硼酸钾与各种烯基溴化物的Suzuki-Miyaura型交叉偶联反应(3)在80℃的甲苯水溶液中以49-95%的收率提供了所需的化合物。在碱性条件下可耐受烷基三氟硼酸钾中的各种官能团。