title: The first lutetacyclopentadienes: synthesis, structure, and diversified insertion/C-H activation reactivity.
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-Csp2 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-Csp2 bonds.
authors: 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).
authors: Ling
authors: L
authors: Xu
authors: Yu-Chen
authors: YC
authors: Wang
authors: Junnian
authors: J
authors: Wei
authors: Yang
authors: Y
authors: Wang
authors: Zitao
authors: Z
authors: Wang
authors: Wen-Xiong
authors: WX
authors: Zhang
authors: Zhenfeng
authors: Z
authors: Xi
keywords: 1,4-dilithio-1,3-butadienes; insertion reactions; metallacyclopentadienes; rare-earth metals