Jump to main content
Jump to site search

Issue 28, 2008
Previous Article Next Article

Promotion of phosphaalkyne cyclooligomerisation by a Sb(V) to Sb(III) redox process

Author affiliations

Abstract

A high yield of the tetraphosphaladderene, anti-tetraphosphatricyclo[4.2.0.02,5]octa-3,7-diene, is obtained from reaction of the zirconocene 1,3-diphosphabicyclo[1.1.0]butane with Ph2SbCl3 in THF or CH2Cl2. Exploration of the reaction pathway using density functional theory suggests that an envelope-type adduct of Ph2SbCl and 1,3-diphosphabicyclo[1.1.0]butane plays a pivotal role in the reaction. The zwitterionic character of this intermediate species allows it to act simultaneously as both an ene and an eneophile, and a symmetry-allowed bimolecular reaction leads to the tetraphosphaladderene species via a spirocyclic intermediate.

Graphical abstract: Promotion of phosphaalkyne cyclooligomerisation by a Sb(v) to Sb(iii) redox process

Back to tab navigation

Supplementary files

Publication details

The article was received on 14 Mar 2008, accepted on 06 May 2008 and first published on 12 Jun 2008


Article type: Paper
DOI: 10.1039/B804401E
Citation: Dalton Trans., 2008,0, 3753-3758
  •   Request permissions

    Promotion of phosphaalkyne cyclooligomerisation by a Sb(V) to Sb(III) redox process

    C. Fish, M. Green, R. J. Kilby, J. E. McGrady, D. A. Pantazis and C. A. Russell, Dalton Trans., 2008, 0, 3753
    DOI: 10.1039/B804401E

Search articles by author

Spotlight

Advertisements