A copper(II) complex with rare μ1,1,1-azide ligand: Active catalyst for heterogeneous olefin epoxidation

被引:56
作者
Roy, Partha [1 ]
Dhara, Koushik [1 ]
Manassero, Mario [2 ]
Banerjee, Pradyot [1 ]
机构
[1] Indian Assoc Cultivat Sci, Dept Inorgan Chem, Kolkata 700032, W Bengal, India
[2] Univ Milan, Dipartimento Chim Struttura & Stereochim Inorgan, I-20133 Milan, Italy
关键词
Cu(II) complex; Azide; Heterogeneous catalysis; Olefin epoxidation;
D O I
10.1016/j.inoche.2007.12.011
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
A copper(II) Complex [Cu2L(mu(1,1)-N-3)(mu(1,3)-N-3)(mu(1,1,1)-N-3)] (1) where HL = 4-methyl-2,6-bis(phenylmethyliminomethyl)phenol, with N2O donor ligand was synthesized and characterized by elemental analysis, FT-IR spectra and X-ray crystallography. X-ray crystallographic study reveals that it is a 1D chain along crystallographic b axis and the existence of rare mu(1,1,1)-azide bridging mode. The complex was immobilized on mesoporous silica and the immobilized compound was used as the active catalyst for the oxidation of olefins using tert-butyl hydroperoxide as oxidant. The results show that corresponding epoxides were produced in high yield with high selectivity. (C) 2007 Elsevier B.V. All rights reserved.
引用
收藏
页码:265 / 269
页数:5
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