Phosphinite
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of a generic phosphinite, R represents a side chain. of methyl diphenylphosphinite In organic chemistry, phosphinites are organophosphorus compounds with the formula . They are used as ligands in homogeneous catalysis and coordination chemistry.
of a generic phosphinite, R represents a side chain.]] of methyl diphenylphosphinite]] In organic chemistry, phosphinites are organophosphorus compounds with the formula . They are used as ligands in homogeneous catalysis and coordination chemistry. ==Preparation== Phosphinites are prepared by alcoholysis of organophosphinous chlorides. For example, treatment of chlorodiphenylphosphine with methanol and base gives methyl diphenylphosphinite: ClPPh 2 + CH 3 OH → CH 3 OPPh 2 + HCl Although they are esters of phosphinous acids (R 2 POH), phosphinites are not made via such intermediates. ==Reactions== Oxidation of phosphinites gives phosphinates: 2 P(OR)R 2 + O 2 → 2 OP(OR)R 2 Phosphinites are ligands, giving derivatives similar to metal phosphine complexes. They are stronger pi-acceptors than typical phosphine ligands. ==See also== Phosphine - PR 3 Phosphine oxide - OPR 3 Phosphonite - P(OR) 2 R Phosphite - P(OR) 3 Phosphinate - OP(OR)R 2 Phosphonate - OP(OR) 2 R Phosphate - OP(OR) 3
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