Palladium-Catalyzed Addition of Tetragermetanes to Alkynes

• Mochida Kunio

  Department of Chemistry, Faculty of Science, Gakushuin University

• Hirakue Katsuhiko

  Department of Chemistry, Faculty of Science, Gakushuin University

• Suzuki Kaoru

  Department of Chemistry, Faculty of Science, Gakushuin University

Abstract

1,1,2,2,3,3,4,4-Octaisopropyltetragermetane (ⁱPr₂Ge)₄ reacted with various alkynes in the presence of palladium complexes at 120 °C to afford 1,2,3,4-tetrahydro-1,2,3,4-tetragermins, Δ⁴-1,2,3-trigemolene, and 1H-germoles, depending on the kind of alkyne and the palladium complex employed. Terminal alkynes are more reactive than internal ones. Pd(dba)₂-ETBP and Pd(acac)₂-ETBP systems were found to serve as efficient catalysts. The mechanism of alkyne insertion reactions into the germanium–germanium bonds of (ⁱPr₂Ge)₄ is discussed.

Journal

• Bulletin of the Chemical Society of Japan

  Bulletin of the Chemical Society of Japan 76 (5), 1023-1028, 2003

  The Chemical Society of Japan

Keywords

• General Chemistry

Details

• CRID: 1390282679097466496
• NII Article ID: 10012812379
• NII Book ID: AA00580132
• DOI: 10.1246/bcsj.76.1023
• ISSN: 13480634
• ISSN: 00092673
• NDL BIB ID: 6532962
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I6532962
• Web Site: https://academic.oup.com/bcsj/article-pdf/76/5/1023/56263615/bcsj.76.1023.pdf
• Text Lang: en
• Data Source:
  • JaLC
  • NDL
  • Crossref
  • CiNii Articles
• Abstract License Flag: Disallowed