BIMETALLIC OXIDATION CATALYSTS - SYNTHESIS, X-RAY-ANALYSIS, AND REACTIVITY OF A BINUCLEAR PARA-HYDROQUINONE-CONTAINING COPPER(II) COMPLEX

被引：39

作者：

GELLING, OJ ^{[1
]}

MEETSMA, A ^{[1
]}

FERINGA, BL ^{[1
]}

机构：

[1] STATE UNIV GRONINGEN,DEPT ORGAN CHEM,NIJENBORGH 16,9747 AG GRONINGEN,NETHERLANDS

来源：

INORGANIC CHEMISTRY | 1990年 / 29卷 / 15期

关键词：

D O I：

10.1021/ic00340a020

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new pentadentate ligand 1,3-bis[N-2-(2′-pyridylethyl)formimidoyl]-2,5-dihydroxybenzene (1) was prepared in five steps from 2,6-dimethylphenol in 21% overall yield. Reaction of 1 with CuII(Clo4)2·6H2O gave the unexpectedly stable hydroquinone-containing binuclear Cu(II) complex [2,6-bis[N-2-(2′-pyridylethyl)formimidoyl]-4-hydroxy-1-phenolato]biscopper(II) bisperchlorate (8). The crystal and molecular structure of 8 was determined by X-ray analysis. The complex crystallizes in the triclinic space group [formula omited], with Z = 2 in a unit cell of the following dimensions: a = 9.399 (2) Å, b = 10.469 (1) Å, c = 14.612 (4) Å, α = 102.72 (2)°, β= 100.71 (2)°, γ = 104.60(2)°. Surprisingly high reactivity of 8 was observed in catalytic oxidations of hydroquinones and α-hydroxy ketones using molecular oxygen as the oxidant. A mechanistic discussion is provided. © 1990, American Chemical Society. All rights reserved.

引用

页码：2816 / 2822

页数：7

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