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Australian Journal of Chemistry Australian Journal of Chemistry Society
An international journal for chemical science
RESEARCH ARTICLE

The aluminium chloride catalysed reaction of phosphorus(III) halides and carbonyl compounds. I. Reaction with benzophenone

KL Freeman and MJ Gallagher

Australian Journal of Chemistry 19(11) 2025 - 2033
Published: 1966

Abstract

In the presence of partially hydrated aluminium chloride, phenylphosphonous dichloride and diphenylphosphinous chloride add smoothly to benzophenone to give chlorodiphenylmethylphenylphosphinic chloride and benzhydryldiphenylphosphine oxide respectively. Little reaction occurs with anhydrous aluminium chloride, and phosphorus trichloride does not react under any conditions. The factors affecting these reactions are described and possible mechanisms discussed. It is suggested that the intermediacy of species of the type [PhPCl3]+[PhPCl,AlCl3]- best explains the observed results.

https://doi.org/10.1071/CH9662025

© CSIRO 1966

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