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Phosphonites are organophosphorus compounds with the formula P(OR)2R. They are found in some pesticides and are used as ligands.〔D. E. C. Corbridge "Phosphorus: An Outline of its Chemistry, Biochemistry, and Technology" 5th Edition Elsevier: Amsterdam 1995. ISBN 0-444-89307-5.〕 ==Preparation== Although they are derivivatives of phosphonous acid (RP(OH)2), they are not prepared from such precursors. Phosphonites are prepared by alcoholysis of organophosphinous chlorides. For example, treatment of dichlorophenylphosphine with methanol and base gives dimethyl phenylphosphonite: :Cl2PPh + 2 CH3OH → (CH3O)2PPh + 2 HCl ==Reactions== Oxidation of phosphonites gives phosphonates: :2 P(OR)2R + O2 → 2 OP(OR)2R Phosphonites can function as ligands in homogeneous catalysis.〔T. V. (Babu) Rajanbabu “Phosphinite and Phosphonite Ligands” in Phosphorus(III) Ligands in Homogeneous Catalysis: Design and Synthesis Paul C. J. Kamer and Piet W. N. M. van Leeuwen, Eds., John Wiley & Sons 2012. 〕 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「phosphonite」の詳細全文を読む スポンサード リンク
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