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|Section2= |Section3= }} Chlorodiphenylphosphine is an organophosphorus compound with the formula (C6H5)2PCl, abbreviated Ph2PCl. It is a colourless oily liquid with a pungent odor that is often described as being garlic-like and detectable even in the ppb range. It is useful reagent for introducing the Ph2P group into molecules, which includes many ligands.〔Quin, L. D. ''A Guide to Organophosphorus Chemistry''; Wiley IEEE: New York, 2000; pp 44-69. ISBN 0-471-31824-8〕 Like other halophosphines, Ph2PCl is reactive with many nucleophiles such as water and easily oxidized even by air. ==Synthesis and reactions== Chlorodiphenylphosphine is produced on a commercial scale from benzene and phosphorus trichloride (PCl3). Benzene reacts with phosphorus trichloride at extreme temperatures around 600 °C to give dichlorophenylphosphine (PhPCl2). Redistribution of PhPCl2 in the gas phase at high temperatures results in chlorodiphenylphosphine.〔〔 :2 PhPCl2 → Ph2PCl + PCl3 Alternatively such compounds are prepared by redistribution reactions starting with triphenylphosphine and phosphorus trichloride. Synthesis of Ph2PCl by the direct reaction of phenylmagnesium bromide and phosphorus trichloride is not practiced. On the other hand, PCl3 can be usefully converted to its monoamide, which in turn undergoes alkylation or arylation. Subsequent removal of the amide gives :〔A. Bollmann, K. Blann, J. T. Dixon, F. M. Hess, E. Killian, H. Maumela, D. S. McGuinness, D. H. Morgan, A. Neveling, S. Otto, M. Overett, A. M. Z. Slawin, P. Wasserscheid, S. Kuhlmann, "Ethylene Tetramerization: A New Route to Produce 1-Octene in Exceptionally High Selectivities" ''J. Am. Chem. Soc'' 2004, 126, 14712-14713 plus supporting information. 〕 :PCl3 + 2 (iPr)2NH → (iPr)2NH2Cl + (iPr)2NPCl2 :(iPr)2NPCl2 + 2 PhMgBr → (iPr)2NPPh2 + 2 MgBrCl :(iPr)2NPPh2 + 2 HCl → (iPr)2NH2Cl + PPh2Cl Unlike the synthesis of chlorodiisopropylphosphine, reaction of two equivalents of the phenyl Grignard reagents with PCl3 does not efficiently afford the monochloride. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Chlorodiphenylphosphine」の詳細全文を読む スポンサード リンク
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