Evidence for the involvement of pentacoordinate P-intermediates during the UV light-mediated fragmentation of a 2-phosphabicyclo[2.2.2]octene 2-oxide in the presence of O-nucleophiles

Stefan Jankowski, Juliusz Rudzinski, Helga Szelke, György Keglevich

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Isotope-exchange experiments with H218O proved at least the partial involvement of a P(V)-species (8) as an intermediate in the UV light-promoted fragmentation of phosphabicyclooctene (1). Selection between the alcohols of equimolar mixtures during the photochemical fragmentation of 1 also suggests a mechanism where an adduct (4) is formed in the rate-determining step affording the phosphorylated product (5) after decomposition. We were able to prove that the transient adduct (4) is formed in a reversible manner.

Original languageEnglish
Pages (from-to)109-113
Number of pages5
JournalJournal of Organometallic Chemistry
Volume595
Issue number1
DOIs
Publication statusPublished - Jan 31 2000

Keywords

  • Fragmentation
  • Mechanism
  • Nucleophility
  • Pentacoordinated intermediate
  • Photolysis
  • Reversibility

ASJC Scopus subject areas

  • Biochemistry
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

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