for the synthesis of 1,1-diarylethylenes using palladium catalysis has been developed. The new catalytic system based on Pd/Xphos–SO3Na or Pd/MeDavephos–CF3SO3 in PEG/H2O under microwave irradiation was found to be the best conditions for this transformation. The recyclability of the palladium catalyst system was also studied, and it was found to be active over nine runs without significant loss in its
已开发出一种绿色的Barluenga-Valdés交叉偶联反应,利用
钯催化合成1,1-二芳基
乙烯。发现在微波辐射下,基于P
EG / H 2 O中Pd / Xphos-SO 3 Na或Pd / MeDavephos-CF 3 SO 3的新催化体系是该转化的最佳条件。还对
钯催化剂体系的可回收性进行了研究,发现
钯催化剂体系在九次运行中均具有活性,而活性没有明显损失。