Neha Patil (Editor)

Phosphinite

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Formula
  
H2OP-

Molar mass
  
48.989 g/mol

Phosphinite httpsuploadwikimediaorgwikipediacommonsthu

Phosphinites are organophosphorus compounds with the formula P(OR)R2. They are used as ligands in homogeneous catalysis and coordination chemistry.

Contents

Preparation

Phosphinites are prepared by alcoholysis of organophosphinous chlorides. For example, treatment of chlorodiphenylphosphine with methanol and base gives methyl diphenylphosphonite:

ClPPh2 + CH3OH → CH3OPPh2 + HCl

Although they are esters of phosphinous acids (R2POH), phosphinites are not made via such intermediates.

Reactions

Oxidation of phosphinites gives phosphinates:

2 P(OR)R2 + O2 → 2 OP(OR)R2

Phosphinites are ligands, giving derivatives similar to metal phosphine complexes. They are stronger pi-acceptors than typical phosphine ligands.

References

Phosphinite Wikipedia
(Text) CC BY-SA