Preparation and X-ray analysis of 2,2',3,3'-tetraphosphinidene 1,1'- bicyclobutyl

Masaaki Yoshifuji, Naoki Yamada, Andreas Maack, Kozo Toyota

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)


A sterically protected diphosphinidenecyclobutene with the 2,4,6-tri- tert-butylphenyl group was allowed to react with tert-butyllithium and iodine, successively, to give 2,2',3,3'-tetraphosphinidene-1,1'-bicyclobutyl derivative, and the structure was confirmed by X-ray analysis, showing unusual short contact between the C=P moieties at the 2 and 2' positions. A strong through-space interaction between them appears to play an important role in rationalization of the 31P NMR and UV/Vis.

Original languageEnglish
Pages (from-to)9481-9484
Number of pages4
JournalTetrahedron Letters
Issue number51
Publication statusPublished - 1998 Dec 17

ASJC Scopus subject areas

  • Biochemistry
  • Drug Discovery
  • Organic Chemistry


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