A mechanistic study of the C-P bond cleavage reaction of 1,2-(PH 2)2-C6H4 with nBuLi/ Sb(NMe2)3

Research output: Contribution to journalArticle

  • External authors:
  • Ruth Edge
  • Robert J. Less
  • Vesal Naseri
  • Robert E. Mulvey
  • Dominic S. Wright

Abstract

In situ 31P NMR spectroscopic studies of the reaction of the primary diphosphine 1,2-(PH2)2-C6H4 with the mixed-metal base system nBuLi/Sb(NMe2) 3, combined with X-ray structural investigations, strongly support a mechanism involving a series of deprotonation steps followed by antimony-mediated reductive C-P bond cleavage. The central intermediate in this reaction is the tetraphosphide dianion [C6H4P 2]22- ([4]) from which the final products, the 1,2,3-triphospholide anion [C6H4P3]- (3) and [PhPHLi] (8·Li), are evolved. An EPR spectrocopic study suggests that homolytic C-P bond cleavage is likely to be involved in this final step. © 2008 The Royal Society of Chemistry.

Bibliographical metadata

Original languageEnglish
Pages (from-to)6454-6460
Number of pages6
JournalDalton Transactions
Issue number45
DOIs
Publication statusPublished - 2008

Related information