A Novel Thiourea Ligand Applied in the Pd-Catalyzed Heck, Suzuki and Suzuki Carbonylative Reactions
作者:Dai Mingji、Bo Liang、Cuihua Wang、Zejin You、Jing Xiang、Guangbin Dong、Jiahua Chen、Zhen Yang
DOI:10.1002/adsc.200404165
日期:2004.12
A novel C2 symmetrical and sterically bulky thiourea ligand 1 has been successfully applied to Heck, Suzuki and Suzuki-type carbonylative coupling reactions under aerobic conditions. Since the metal-sulfur bond in the thiourea complexes is stronger than the metal-phosphorus bond of typical phosphine complexes, thiourea ligands generally do not easily dissociate from the metal center under catalytic
一种新型的C 2对称且空间体积大的硫脲配体1已成功地用于有氧条件下的Heck,Suzuki和Suzuki型羰基化偶联反应。由于硫脲配合物中的金属-硫键比典型的膦配合物的金属-磷键强,因此硫脲配体在催化条件下通常不容易从金属中心解离,这建立了基于硫脲1的钯配合物作为有效催化剂用于钯催化的交叉偶联反应。