研究室工作进展 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.

亮点介绍

 金属杂环戊二烯，作为一类重要的金属有机杂五元环化合物，受到了许多金属有机化学家的关注。我们合成了首例稀土金属杂环戊二烯(Chem. Eur. J. 2015, 21, 6686-6689)。本文(Chem. Eur. J. 2015, 21, 15860-15866.)主要研究了稀土镥杂环戊二烯与碳二亚胺的反应。通过对碳二亚胺的当量、溶剂及LiCl的量进行调控，我们高选择性、高产率地得到了多种含有镥元素的氮杂环化合物，并对此体系进行了详细的探索，对各种产物生成的机理进行了实验与计算化学的研究。