The First Lutetacyclopentadienes: Synthesis,Structure, and Diversified Insertion/CH Activation Reactivity |
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| Authors: | Ling Xu Yu‐Chen Wang Junnian Wei Yang Wang Zitao Wang Prof?Dr Wen‐Xiong Zhang Prof?Dr Zhenfeng Xi |
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| Institution: | 1. Beijing National Laboratory for Molecular Sciences (BNLMS), Key Laboratory of Bioorganic Chemistry and Molecular Engineering of Ministry of Education, College of Chemistry, Peking University, Beijing 100871 (P. R. China);2. State Key Laboratory of Elemento‐Organic Chemistry, Nankai University, Tianjin 300071 (P. R. China) |
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| Abstract: | The first well‐defined lutetacyclopentadienes are synthesised from pentamethylcyclopentadienyl lithium (Cp*Li), 1,4‐dilithio‐1,3‐butadienes, and LuCl3. The lutetacyclopentadiene shows excellent reactivity towards some small molecules, such as pivalaldehyde, Se, carbon dioxide, and isonitrile to efficiently construct 3‐, 5‐, 7‐, 8‐, and 9‐membered rare‐earth metallacycles. Both monoinsertion and double‐insertion of two Lu?C bonds are observed. Specially, the reaction between lutetacyclopentadiene and isonitrile afforded 3,5,5]‐fused metallacycles. The distinguished reactivity can be attributed to the highly ionic character and the cooperative reactivity of two Lu?C bonds. |
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| Keywords: | 1 4‐dilithio‐1 3‐butadienes insertion reactions metallacyclopentadienes rare‐earth metals |
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