Palladium-catalyzed cross-couplings of allylic carbonates with triarylbismuths as multi-coupling atom-efficient organometallic nucleophiles
作者:Maddali L.N. Rao、Debasis Banerjee、Somnath Giri
DOI:10.1016/j.jorganchem.2010.03.010
日期:2010.5
Allylic carbonates were efficiently cross-coupled with triarylbismuths under palladium catalysis. Using the optimized protocol, arylations of various allylic carbonates were carried out with triarylbismuths to afford high yields of 1,3-disubstituted propenes in regio- and chemo-selective manner. Triarylbismuths were employed as multi-coupling atom-efficient organometallic nucleophiles in sub-stoichiometric
在钯催化下,烯丙基碳酸酯与三芳基铋有效地交叉偶联。使用优化的方案,用三芳基铋进行各种烯丙基碳酸酯的芳基化,从而以区域和化学选择性的方式提供高产率的1,3-二取代的丙烯。三芳基铋在所有反应中均以低于化学计量的量用作多偶联原子有效的有机金属亲核试剂。