作者:Kai-Oliver Feldmann、Jan J. Weigand
DOI:10.1021/ja305406x
日期:2012.9.19
preparation of complex polyphosphanes. Detailed spectroscopic investigations form the basis for a mechanistic understanding of this unprecedented methodology. Furthermore, the preparation of a unique dinuclear iron-carbonyl complex which features hexaphosphane 19 as a bridging ligand illustrates the potential use of complex polyphosphanes such as 19 as ligands in transition metal chemistry.
具有 2,2'-双(1,2,3-三磷酸环戊烷) 部分 (19) 和乙烯桥连的双异四膦 (27(c,m)) 的独特六膦均以高效的一锅法合成选择性制备来自易于获得的三(3,5-二甲基-1-吡唑基)膦(14)和1,2-双(苯基膦基)乙烷(18(c,m))。27(c,m) 的形成是通过质子分解形成高效 PP 键的一个例子。相反,19的形成包括PN/PP键复分解步骤。这构成了制备复合多膦的新合成方法。详细的光谱研究构成了对这种前所未有的方法的机械理解的基础。此外,