作者:Juan Diego Pizarro、Francisco Molina、Manuel R. Fructos、Pedro J. Pérez
DOI:10.1002/chem.202001517
日期:2020.8.12
A family of phosphine ligands containing a five‐membered ring similar to the popular N‐heterocyclic carbene ligands and an alkoxy third substituent has been developed. These alkoxydiaminophosphine ligands (ADAP) can be generated in one pot and reacted with a copper(I) source leading to the high yield isolation of complexes [(ADAP)CuX]2 (X=Cl, Br). The dinuclear nature of these compounds has been established
已开发出一个含有五元环的膦配体,该环类似于流行的N杂环卡宾配体,并带有一个烷氧基第三取代基。这些烷氧基二氨基膦配体(ADAP)可以在一个锅中生成,并与铜(I)源反应,从而导致复合物[(ADAP)CuX] 2的高产率分离。(X = Cl,Br)。这些化合物的双核性质已通过X射线研究和DOSY实验确定。对这些配合物从重氮化合物到CH键(烷烃,芳烃),烯烃或NH键的卡宾转移反应的催化性能的筛选,以及在CuAAC或腈转移反应中的性能至少相似(如果不是更好的话),则比他们的(NHC)CuCl类似物好,这些易于调节的ADAP配体为铜催化打开了一个新窗口。