作者:Mark J.M Vlaar、Frans J.J de Kanter、Marius Schakel、Martin Lutz、Anthony L Spek、Koop Lammertsma
DOI:10.1016/s0022-328x(00)00601-x
日期:2001.1
The transientelectrophilicphosphinidene complex PhPW(CO)5 reacts in the presence of CuCl at room temperature with phospholene 2 and phospholes 4a–c to give the corresponding W(CO)5 complexed products 3 and 5a–c. The intermediate phosphoranylidene phosphine complexes, formed, from the addition of PhPW(CO)5 to the phosphorus atom of the substrates, are characterized by NMR spectroscopy and by a single
Phosphepines: Convenient Access to Phosphinidene Complexes
作者:Mark L. G. Borst、Rosa E. Bulo、Christiaan W. Winkel、Danièle J. Gibney、Andreas W. Ehlers、Marius Schakel、Martin Lutz、Anthony L. Spek、Koop Lammertsma
DOI:10.1021/ja050817y
日期:2005.4.1
o-diethynylbenzene with transition metal-complexed primary phosphines gives in a single base-induced step stable phosphepine complexes as confirmed by X-ray data. At 75-80 degrees C these phosphepines undergo clean cheletropic elimination of naphthalene to give transient carbene-like phosphinidene complexes that can be trapped in high yield by alkenes, alkynes, and alcohols.
X 射线数据证实,邻二乙炔苯与过渡金属络合的伯膦反应在单一的碱诱导步骤中得到稳定的膦配合物。在 75-80 摄氏度时,这些磷化氢会经历萘的清洁螯合消除,以产生瞬态的卡宾状磷化烯配合物,这些配合物可以被烯烃、炔烃和醇以高产率捕获。
Generation and trapping of terminal phosphinidene complexes. Synthesis and x-ray crystal structure of stable phosphirene complexes