86952-10-5Relevant academic research and scientific papers
Some phosphorus Derivatives
Eaborn, Colin,Retta, Negussie,Smith, J. David
, p. 905 - 910 (2007/10/02)
Treatment of Li with PPh2Cl gave the phosphine PPh2, which, in spite of the steric crowding caused by the silicon ligand, was readily converted into the phosphonium salts Ph2H>I and Ph2Me>I; the latter on heating gave the ylid MePh2PC(SiMe3)2.In methanol at room temperature the phosphine PPh2 readily loses one Me3Si group to give PPh2; the remaining Me3Si groups are lost successively, with decreasing ease, giving finally PPh2Me.These Si-C bond cleavages are catalysed by acid but inhibited by base, and it is suggested that the initial step is protonation of the phosphine.The quaternary salt Ph2Me>I successively loses its Me3Si groups very readily in methanol, ultimately to give I.
