Oxidation of Diphosphine Dioxides, Disulfides and Phosphinothioite and Photolysis of Diphosphine Disulfides. Formation of Phosphinic and Phosphinothioic Anhydrides

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概要

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• Oxidation of tetraphenyldiphosphine dioxide with an equimolar amount of peroxybenzoic acid (III) gave diphenylphosphinic anhydride in a good yield. Similarly, diphosphine disulfides (II) with 1.5–2.0 mol times of III, gave the corresponding phosphinothioic anhydrides (V), together with the corresponding phosphinic acid and sulfur. II gave V in air in refluxing xylene or <I>o</I>-dichlorobenzene. The yields of V increased with reaction temperature and with reaction time, indicating a homolytic fission of the P(S)–P(S) bond. Reaction of tetraphenyldiphosphine disulfide with sulfur in refluxing <I>o</I>-dichlorobenzene gave bis(diphenylphosphinothioyl) sulfide. Photolysis of II with a low pressure mercury lamp gave phosphinic acid and sulfur under oxygen, and gave phosphine sulfide and <I>O</I>-methyl phosphinothioate in methanol. Phenyl diphenylphosphinothioite gave diphenyl disulfide and diphenylphosphinic acid with silver nitrate.

• 公益社団法人 日本化学会の論文

著者

• Inamoto Naoki

  Department Of Chemistry Graduate School Of Science The University Of Tokyo

• Okazaki Renji

  Department Of Chemical And Biological Sciences Faculty Of Science Japan Women's University

• Emoto Tateki

  Department of Chemistry, Faculty of Science, The University of Tokyo

• Inamoto Naoki

  Department of Chemistry and Research Centre for Spectrochemistry, Faculty of Science, The University of Tokyo

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