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Facile Synthesis of Dodecamine Organic Cage‐Based Monolithic Microreactor via Ring‐Opening Polymerization Following Spontaneous Reduction of Gold Ions for Continuous Flow Catalysis
Author(s) -
Wang Hongwei,
Ou Junjie,
Chen Lianfang,
Li Ya,
Liu Zhongshan,
Peng Xiaojun,
Ye Mingliang
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201702213
Subject(s) - microreactor , monolith , colloidal gold , catalysis , materials science , chemical engineering , polymerization , chemistry , supercritical fluid , nanoparticle , nanotechnology , organic chemistry , polymer , engineering
The reduction product of imine‐based porous organic cage CC1, namely dodecamine organic cage RCC1, was introduced as a novel crosslinker in fabrication of polymeric monolith by ring‐opening polymerization with ethylene glycol diglycidyl ether (EGDGE). Due to the presence of amines in polymeric matrix, poly(RCC1‐co‐EGDGE) monoliths could be employed as dual functional reductant and stabilizer in the formation of gold nanoparticles (AuNPs) on their surface by spontaneous reduction of Au 3+ to Au 0 . The immobilized AuNPs, together with micrometer‐scale macropores of the monolith, provided the feasibility of continuous flow catalysis. Then AuNPs‐immobilized poly(RCC1‐co‐EGDGE) monolith (150 μm i.d. × 28 cm in length) was used as a catalytic microreactor in reduction of 8‐nitroquinoline to 8‐aminoquinoline. The reactant in the outflow completely disappeared, and high‐yield product could be conveniently collected, indicating the promising of RCC1‐based monolithic microreactor in catalysis.