1,2-additions of phenylselenenyl halides to phosphaalkynes

Matthew D. Francis, Cameron Jones, Peter C. Junk, John L. Roberts

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The preparation of a variety of selenophosphaalkenes by addition of phenylseleneyl halides to phosphaalkynes is described. The process is stereoselective and largely regioselective. The stereoselectivity is explained by postulating the presence of a cyclic selenophosphirenylium cation. The reaction of one of the prepared selenophosphaalkenes with 'BuLi is discussed.

Original languageEnglish
Pages (from-to)23-34
Number of pages12
JournalPhosphorus, Sulfur and Silicon and the Related Elements
Publication statusPublished - 1 Jan 1997
Externally publishedYes


  • Crystal structure
  • Phenylselenenyl halide
  • Phosphaalkyne
  • Selenophosphaalkene
  • Selenophosphirenylium cation

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