Functionalised Chitosan as a Green, Recyclable, Supported Catalyst for the Copper-Catalysed Ullmann C-N Coupling Reaction in Water
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作者:
Yang, Bo
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Yang, Bo
[1
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Mao, Zuxing
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Mao, Zuxing
[1
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Zhu, Xinhai
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Zhu, Xinhai
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Wan, Yiqian
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Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R ChinaSun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Wan, Yiqian
[1
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机构:
[1] Sun Yat Sen Univ, Sch Chem & Chem Engn, Guangzhou 510275, Guangdong, Peoples R China
Functionalised chitosan was synthesised and combined with CuO to yield a recyclable, environment-friendly heterogeneous catalytic system for the Ullmann C-N coupling reaction in water. Various aromatic amines can be readily prepared from both electron-withdrawing and electron-donating aryl halides with anilines, benzylamine, aliphatic amines and imidazole with good to excellent yields, even for the hindered o-substituted aryl halides. (C) 2014 Elsevier B.V. All rights reserved.