A rapid cobalt carbonyl mediated cleavage of both phosphoruscarbon bonds in bis(diphenylphosphino)methane under very mild conditions: Extrusion of metheylene as keten
作者:Shamsuddin Ahmed、David G. Holah、Alan N. Hughes、Robert T. Markewich
DOI:10.1016/s0277-5387(00)87191-0
日期:1993.5
Abstract In cobalt(II)/ bis(diphenylphosphino)methane /NaBH4/CO reactions, in which the NaBH4 is added very rapidly, both PC bonds of the phosphine are cleaved with extrusion of the methylene group as ketene.
Rapid phosphorus–carbon bond cleavage in bis(diphenylphosphino)methane under very mild conditions: a one-step synthesis of µ-PPh<sub>2</sub>, µ-Ph<sub>2</sub>PCH<sub>2</sub>PPh<sub>2</sub>binuclear Co<sup>I</sup>and Ni<sup>I</sup>carbonyls directly from Co<sup>II</sup>and Ni<sup>II</sup>salts
作者:David J. Elliot、David G. Holah、Alan N. Hughes、Hameed A. Mirza、Elizabeth Zawada
DOI:10.1039/c39900000032
日期:——
CoII and NiII react rapidly with NaBH4 in the presence of bis(diphenylphosphino)methane (dppm) under CO at or below (0 °C) room temperature to yield complexes of the types Co2(µ-H)(µ-PPh2)(µ-dppm)(CO)4, Co2(µ-H)(µ-PPh2)(µ-dppm)2(CO)2, and [Ni2(µ-PPh2)(µ-dppm)2(CO)2]X (X = Cl, BPh4).