Research news, Dec. 1st, 2015

  Insertion/Rearrangement Reactivity of a Lutetacyclopentadiene towards N,N-Diphenylcarbodiimide: Cooperative Effect of the Metal Center, Concentration of LiCl, and Solvent

Ling Xu, Junnian Wei, Wen-Xiong Zhang,* and Zhenfeng Xi

 Chem. Eur. J. 2015, 21, 15860-15866. 

  Metallacyclopentadienes of s-, p- and d-block metals have received considerable attention. However, rare-earth metallacyclopentadienes were not achieved until very recently, we reported the first well-defined f-block lutetacyclopentadienes (Chem. Eur. J. 2015, 21, 6686-6689). The lutetacyclopentadiene showed excellent reactivity towards some small molecules. Its reactivity towards DPC is investigated in detail in this work(Chem. Eur. J. 2015, 21, 15860-15866.). This system can afford three types of new N-containing fused cyclic complexes. The product complexes significantly depend on the properties of the metal center, the concentration of LiCl, the number of equivalents of DPC and the solvent. We proposed a mechanism to explain the results by using DFT calculation.