Rare-Earth Metal Tris(trimethylsilylmethyl) Anionic Complexes Bearing   One 1-Phenyl-2,3,4,5-tetrapropylcyclopentadienyl Ligand: Synthesis,   Structural Characterization, and Application

doi:10.1021/ic3018369

CORC > 北京大学 > 化学与分子工程学院

	Rare-Earth Metal Tris(trimethylsilylmethyl) Anionic Complexes Bearing One 1-Phenyl-2,3,4,5-tetrapropylcyclopentadienyl Ligand: Synthesis, Structural Characterization, and Application
	Xu, Ling ; Wang, Zitao ; Zhang, Wen-Xiong ; Xi, Zhenfeng
刊名	inorganic chemistry
	2012
关键词	PMDETA = N,N,N&apos X-RAY STRUCTURE AMINE N-H CATALYTIC ADDITION SUBSTITUTED GUANIDINES LANTHANIDE COMPLEXES EFFICIENT ROUTE C-H CYCLOPENTADIENE DERIVATIVES TERMINAL ALKYNES ,N&apos &apos ,N&apos &apos -PENTAMETHYLDIETHYLENETRIAMINE
DOI	10.1021/ic3018369
英文摘要	Synthesis and structural characterization of half-sandwich rare-earth metal tris(trimethylsilylmethyl) anionic complexes bearing one 1-phenyl-2,3,4,5-tetrapropylc-yclopentadienyl ligand are achieved. These soluble anionic compounds show good reactivity in the stoichiometric reaction with dibenzoylmethane (DBM) to give the salt-free half-sandwich complex bearing two chelate DBM ligands. More importantly, they can serve as excellent and general catalyst precursors for the addition of different types of amines including primary aromatic amines (ArNH2), acyclic (RR'NH, ArRNH, and ArAr'NH; R, R' = Alkyl group, Ar, Ar' = Aromatic group), or cyclic secondary aliphatic amines to carbodiimides yielding efficiently guanidines. Acyclic secondary amines of the general formula ArAr'NH and ArRNH cannot be achieved efficiently by the previous rare-earth catalysts because of their weak nucleophilicity and steric hindrance. Our results show clearly the reactivities of anionic trialkyl precursors are comparable with the corresponding neutral alkyl complex in the stoichimetric reaction but exhibit better catalytic activity than the known catalysts.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000313220200083&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; Chemistry, Inorganic & Nuclear; SCI(E); PubMed; 3; ARTICLE; 21; 11941-11948; 51
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/191920]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Xu, Ling,Wang, Zitao,Zhang, Wen-Xiong,et al. Rare-Earth Metal Tris(trimethylsilylmethyl) Anionic Complexes Bearing One 1-Phenyl-2,3,4,5-tetrapropylcyclopentadienyl Ligand: Synthesis, Structural Characterization, and Application[J]. inorganic chemistry,2012.
APA	Xu, Ling,Wang, Zitao,Zhang, Wen-Xiong,&Xi, Zhenfeng.(2012).Rare-Earth Metal Tris(trimethylsilylmethyl) Anionic Complexes Bearing One 1-Phenyl-2,3,4,5-tetrapropylcyclopentadienyl Ligand: Synthesis, Structural Characterization, and Application.inorganic chemistry.
MLA	Xu, Ling,et al."Rare-Earth Metal Tris(trimethylsilylmethyl) Anionic Complexes Bearing One 1-Phenyl-2,3,4,5-tetrapropylcyclopentadienyl Ligand: Synthesis, Structural Characterization, and Application".inorganic chemistry (2012).