Synthesis and catalytic activity of half‐sandwich iridium complexes with acylhydrazone ligands for N‐alkylation of hydrazides under mild conditions
作者:Ke Wang、Song Gao、Yu‐Zhou Luo、Zi‐Jian Yao
DOI:10.1002/aoc.7473
日期:——
interaction resulted in the formation of a pseudo-octahedral geometry with the iridium center. The iridium complexes 1–4, which are stable in the presence of air and moisture, exhibit significant catalyst performance in the N-alkylation reactions of hydrazides under gentle reaction conditions. This iridium complex catalyzes various types of alcohols to undergo N-alkylation reactions with acyl hydrazides via a
通过酰腙配体与[Cp*IrCl 2 ] 2 配位,成功合成了一种新型[Cp*IrClL]半夹心铱配合物,并利用各种光谱和分析方法进行了综合表征技术。对配合物3进行了晶体结构分析,表明酰腙配体通过涉及亚氨基氧和亚胺氮原子的双齿配位与铱配位。这种相互作用导致形成以铱为中心的伪八面体几何形状。铱配合物1-4在空气和湿气存在下稳定,在温和的反应条件下在酰肼的N-烷基化反应中表现出显着的催化性能。该铱配合物通过一锅法催化各类醇与酰肼发生N-烷基化反应,生成多种N-烷基化酰肼衍生物。该催化剂表现出卓越的催化效率、广泛的底物种类和温和的反应条件,表明其具有巨大的工业应用潜力。