Reactivity of an Acetylenephosphino Gold(III) Precursor: Addition to the Triple Bond or Formation of Alkynyl Derivatives
作者:Manuel Bardají、Antonio Laguna、Peter G. Jones
DOI:10.1021/om010385+
日期:2001.9.1
We have synthesized the gold(III) complex Au(C6F5)3(PPh2CCH) (1), containing an acetylene moiety. Reactions with sodium alkoxides lead chemoselectively and regioselectively to gold(III) complexes containing the new ligand (2-alkoxyethenyl)diphenylphosphine or (2,2-dialkoxyethyl)diphenylphosphine, via a single or double alcohol addition to the acetylenephosphine fragment. Reaction of complex 1 with
我们已经合成了含有乙炔部分的金(III)络合物Au(C 6 F 5)3(PPh 2 CCH)(1)。与醇钠的反应通过对乙炔膦片段的单或双醇加成,化学上和区域上选择性地导致了含有新的配体(2-烷氧基乙烯基)二苯基膦或(2,2-二烷氧基乙基)二苯基膦的金(III)配合物。配合物1与乙酰丙酮金(I)或银(I)衍生物的反应得到二,三或四核炔基膦基配合物,即Au III(C 6 F 5)3(PPh 2 CC)M I(PPh 3)(M = Au,Ag),Au III(C 6 F 5)3(PPh 2 CC)} 2 Au I和Au III(C 6 F 5)3(PPh 2 CC)Au I } 2(μ-PPH 2 CH 2 CH 2 PPH 2)。Au(C 6 F 5)3(PPh 2 CH 2 CH(OMe)2)和Au III(C通过X射线衍射研究确定了6 F 5)3(PPh 2 CC)Au I(PPh