Phosphonite
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In organic chemistry, phosphonites are organophosphorus compounds with the formula P(OR) 2 R. They are found in some pesticides and are used as ligands.
In organic chemistry, phosphonites are organophosphorus compounds with the formula P(OR) 2 R. They are found in some pesticides and are used as ligands. ==Preparation== Although they are derivatives 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: Cl 2 PPh + 2 CH 3 OH → (CH 3 O) 2 PPh + 2 HCl ==Reactions== Oxidation of phosphonites gives phosphonates: 2 P(OR) 2 R + O 2 → 2 OP(OR) 2 R Phosphonites can function as ligands in homogeneous catalysis.
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