研究室工作進展 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.

亮點介紹

 金屬雜環戊二烯，作為一類重要的金屬有機雜五元環化合物，受到了許多金屬有機化學家的關注。我們合成了首例稀土金屬雜環戊二烯(Chem. Eur. J. 2015, 21, 6686-6689)。本文(Chem. Eur. J. 2015, 21, 15860-15866.)主要研究了稀土镥雜環戊二烯與碳二亞胺的反應。通過對碳二亞胺的當量、溶劑及LiCl的量進行調控，我們高選擇性、高産率地得到了多種含有镥元素的氮雜環化合物，并對此體系進行了詳細的探索，對各種産物生成的機理進行了實驗與計算化學的研究。