Improved preparative method for 1,2-diaryl-3,4-diphosphinidenecyclobutenes and its application to the studies of l,2-bis(arylthienyl)-3,4- diphosphinidenecyclobutenes

Kozo Toyota, Keiko Horikawa, Rader S. Jensen, Kouhei Omori, Subaru Kawasaki, Shigekazu Ito, Masaaki Yoshifuji, Noboru Morita

    Research output: Contribution to journalArticle

    6 Citations (Scopus)


    Sterically protected 1,2-diary1-3,4-diphosphinidenecyclobutenes were prepared from 3-ary1-2-bromo-1-(2,4,6-tri-t-butylphenyl)-3-(trimethylsiloxy)- l-phosphapropene using t-butyllithium and 1,2-dibromoethane, and the properties of the products, such as 1,2-di(2,2′-bithienyl-5-yl)-3,4- diphosphinidenecyclobutene, were studied. This method is an excellent method for preparing these compounds.

    Original languageEnglish
    Pages (from-to)1580-1586
    Number of pages7
    JournalBulletin of the Chemical Society of Japan
    Issue number8
    Publication statusPublished - 2007


    ASJC Scopus subject areas

    • Chemistry(all)

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