Reactions of metal-metal quintuple bonds with alkynes: [2+2+2] and [2+2] cycloadditions

Hong Zhang Chen*, Shih Cheng Liu, Chun Hsu Yen, Jen-Shiang K. Yu, Yun Jen Shieh, Ting Shen Kuo, Yi Chou Tsai

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

55 Scopus citations


High five! The quintuply bonded molybdenum amidinate 1 reacts with two equivalents of 1-pentyne through a [2+2+2] cycloaddition reaction to give the first examples of the benzannulated product 2. The C4Mo2 rings exhibit aromatic character. Treatment of 1 with internal alkynes afforded the 2:1 and 1:1 [2+2] cycloadducts, which are mechanistically associated with the formation of 2.

Original languageEnglish
Pages (from-to)10342-10346
Number of pages5
JournalAngewandte Chemie - International Edition
Issue number41
StatePublished - 8 Oct 2012


  • aromaticity
  • cycloaddition
  • electronic structure
  • molybdenum
  • multiple bonds

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