Pd-catalyzed chemoselective threefold cross-coupling of triarylbismuths with benzylic bromides
作者:Maddali L. N. Rao、Ritesh J. Dhanorkar
DOI:10.1039/c3ra40413g
日期:——
for the chemoselective cross-coupling of functionalized benzylic bromides with triarylbismuthreagents. Under the established conditions, catalyzed by palladium in the presence of K3PO4 base in DMA at 90 °C for 1 h, the threefoldarylations using triarylbismuthreagents proceeded smoothly with electronically diverse benzylic bromides. All the coupling reactions furnished the corresponding functionalized
对于功能化的苄基溴化物与三芳基铋试剂的化学选择性交叉偶联,证明了一种有效的钯催化方案。在既定条件下,钯在DMA中在90°C下在DMA中存在K 3 PO 4碱的条件下催化1 h,使用三芳基铋试剂进行的三重芳基化反应可通过电子形式多样的苄基溴顺利进行。所有偶联反应均以高收率提供了相应的官能化二芳基甲烷。