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Microcrystalline Zinc Coordination Polymers as Single‐site Heterogeneous Catalysts for the Selective Synthesis of Mono‐oxazolines from Amino Alcohol and Dinitriles
Author(s) -
Wang Junning,
Huang Chao,
Gao Kuan,
Wang Xiaolu,
Liu Mengjia,
Ma Haoran,
Wu Jie,
Hou Hongwei
Publication year - 2016
Publication title -
chemistry – an asian journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.18
H-Index - 106
eISSN - 1861-471X
pISSN - 1861-4728
DOI - 10.1002/asia.201600434
Subject(s) - microcrystalline , zinc , catalysis , alcohol , chemistry , polymer , polymer chemistry , organic chemistry , coordination polymer , combinatorial chemistry , crystallography
In our effort to develop coordination polymers (CPs)‐based single‐site catalysts for the selective synthesis of mono‐oxazolines, two Zn‐based CPs, [{Zn 6 (idbt) 4 (phen) 4 } ⋅3 H 2 O] n ( 1 ) and [{Zn 3 (idbt) 2 (H 2 O) 4 }⋅2 H 2 O] n ( 2 ) (H 3 idbt= 5,5′‐(1 H ‐imidazole‐4,5‐diyl)‐bis‐(2 H ‐tetrazole), phen=1,10‐phenanthroline) have been synthesized. They exhibit two‐dimensional structure and contain isolated and accessible catalytically active sites, mimicking the site isolation of many catalytic enzymes. Micro CPs 1 and 2 are obtained by using surfactant‐mediated hydrothermal methods, and an investigation is conducted to explore how different surfactants affect their morphologies and particle sizes. Furthermore, micro 1 and 2 have shown to be effective heterogeneous catalysts for the reaction of amino alcohols and aromatic dinitriles, and exerted a significant influence on the selectivity of the catalytic reactions, yielding mono‐oxazolines as the major reaction product.