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Design and Synthesis of an Au@MIL‐53(NH 2 ) Catalyst for a One‐Pot Aerobic Oxidation/Knoevenagel Condensation Reaction
Author(s) -
Qi Yue,
Luan Yi,
Peng Xiong,
Yang Ming,
Hou Junying,
Wang Ge
Publication year - 2015
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.201500808
Subject(s) - knoevenagel condensation , chemistry , catalysis , bifunctional , one pot synthesis , adsorption , condensation reaction , redox , metal organic framework , heterogeneous catalysis , organic chemistry , combinatorial chemistry
Highly dispersed gold nanoparticles were deposited on an amino‐functionalized Al‐based MIL‐53 metal–organic framework by a facile adsorption/reduction strategy. The aromatic amino groups were utilized for adsorption and stabilization of AuCl 4 – and as basic catalytic sites in the Knoevenagel reaction. The bifunctional Au@MIL‐53(NH 2 ) catalyst was utilized to develop an efficient one‐pot aerobic oxidation of alcohols/Knoevenagel condensation reaction that takes advantage of Au 0 and NH 2 incorporation at the same time. The roles of Au and NH 2 groups were systematically investigated to elucidate their functionality during the one‐pot reaction. In addition, the Au@MIL‐53(NH 2 ) catalyst can be easily recycled up to five times without leaching of the active centres or significant loss of catalytic activity.