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Construction of the Copper‐Functionalized Covalent Organic Framework Used as a Heterogeneous Catalyst for Click Reaction
Author(s) -
Gao Tingjun,
Su Xiaofang,
Xu Huanjun,
Hu Hui,
Zeng Chaoyuan,
Gao Yanan
Publication year - 2020
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.202004130
Subject(s) - imine , covalent organic framework , catalysis , covalent bond , click chemistry , copper , alkyne , methanol , pyridine , chemistry , azide , polymer chemistry , combinatorial chemistry , materials science , organic chemistry
Functional modification of the covalent organic frameworks (COFs) has become an efficient strategy to expand its applications in various fields. In this investigation, an imine linked T−D COF has been synthesized via solvothermal method using 2,4,6‐tris(4‐aminophenyl)pyridine (TAPP) and 2,6‐dihydroxynaphthalene‐1,5‐dicarbaldehyde (DHNDA) as building blocks. While synthesizing T‐D COF, hydroxyl groups are strategically introduced to the adjacent sites of −C=N− bonds in the framework. Such a special structure enables a strong coordination between the loaded copper metal ion and the hydroxyl groups together with imine bounds in the COF layered structure. The obtained copper‐containing COF, (Cu@T−D COF) hybrid material was used as an efficient heterogeneous catalyst for the alkyne‐azide click chemistry reactions and showed excellent catalytic activity in methanol/water medium. Furthermore, this Cu@T−D COF is stable and easily recycled and reused without loss of its catalytic activity.