higher σ‐electron‐donor character of the ligand. Remarkably, the activities obtained for the reduction of CO2 under the transfer hydrogenation conditions are the best reported to date in terms of TON value (max. TON=2700). The two new complexes have also shown very good activity in the selective deuteration of arylamines, a process that is known to proceed through a chelate assisted N‐directed process
                                    合成了两种新的具有
磺酸盐官能团的
水溶性[IrI 2(AcO)(bis-NHC)]络合物(NHC = N-杂环卡宾)。已经测试了两种络合物在用H 2和i PrOH还原CO 2中的作用,并且将它们的活性与没有
磺酸盐部分的类似物质进行了比较。在这两个反应中,由于
配体的σ电子给体特征较高,具有两个非正常结合的NHC的配合物显示出最佳的催化效率。显着地,为减少CO 2而获得的活性在转移氢化条件下,就TON值(最大TON = 2700)而言,是迄今为止报道得最好的。两种新的配合物在芳基胺的选择性
氘化中也显示出非常好的活性,该过程已知是通过螯合辅助的N定向过程进行的。