Copper(II) complex of the 2-pyridinecarbaldehyde aminoguanidine Schiff base: Crystal structure and catalytic behaviour in mild oxidation of alkanes

被引：28

作者：

Buvaylo, Elena A. ^{[1
]}

Kokozay, Vladimir N. ^{[1
]}

Vassilyeva, Olga Yu. ^{[1
]}

Skelton, Brian W. ^{[2
]}

Nesterova, Oksana V. ^{[3
]}

Pombeiro, Armando J. L. ^{[3
]}

机构：

[1] Taras Shevchenko Natl Univ Kyiv, Dept Chem, 64-13 Volodymyrska Str, UA-01601 Kiev, Ukraine

[2] Univ Western Australia, Sch Chem & Biochem, M310, Perth, WA 6009, Australia

[3] Univ Lisbon, Inst Super Tecn, Ctr Quim Estrutural, Av Rovisco Pais, P-1049001 Lisbon, Portugal

来源：

INORGANIC CHEMISTRY COMMUNICATIONS | 2017年 / 78卷

关键词：

2-Pyridinecarbaldehyde; Aminoguanidine; Schiff base copper(II) complex; Crystal structure; Catalytic oxidation of cyclohexane, adamantane, cis-1,2-dimethylcyclohexane; HYDROCARBON OXYGENATIONS; PEROXIDATIVE OXIDATION; GUANIDINE; H2O2; FUNCTIONALIZATION; HYDROGEN; CORES; ACID; CYCLOHEXANE; MECHANISMS;

D O I：

10.1016/j.inoche.2017.03.008

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The new neutral dichloro-copper(II) Schiff base complex [CuCl2L]center dot dmf2, where L results from condensation of 2pyridinecarbaldehyde and aminoguanidine, was prepared, while the ligand itself was isolated in its protonated form as the dinitrate salt (H2L)(NO3)(2) 1. Extended conjugation is responsible for the planarity of the H2L2+ cation in 1. On coordination, L forms two fused 5-membered chelate rings occupying three equatorial positions of the distorted square pyramidal copper polyhedron in 2. The catalytic investigations disclosed a prominent activity of the copper compound 2 towards oxidation of cyclohexane with hydrogen peroxide in the presence of various promoters (nitric and acetic acids, pyridine and pyrrole), showing overall yields of products (cyclohexanol and cydohexanone) up to 21% based on the substrate. (C) 2017 Elsevier B.V. All rights reserved.

引用

页码：85 / 90

页数：6

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