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Issue 4, 2018
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The cooperation of porphyrin-based porous polymer and thermal-responsive ionic liquid for efficient CO2 cycloaddition reaction

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Abstract

The cooperation of catalyst and co-catalyst, together with efficient recycling, is one of the most important and still big challenges for CO2 cycloaddition reaction. Herein, we report a facile and atom-efficient method to synthesize a porous zinc-porphyrin-based framework (P-POF-Zn) as a catalyst for the synthesis of cyclic carbonates. It was demonstrated for the first time that the combination of P-POF-Zn and thermal-responsive ionic liquid [CPeDMAPy]Br (soluble in PO and PC at high temperature but not at room temperature) could efficiently catalyze the cycloaddition reaction of CO2 and propylene oxide to afford a turnover frequency of 433 h−1. The high catalytic activity is mainly attributed to the efficient cooperation of P-POF-Zn (Lewis acid site) and [CPeDMAPy]Br (nucleophile). Both P-POF-Zn and [CPeDMAPy]Br could be fully recovered after reaction by simple filtration for stable recycling. This work demonstrates the efficiency of the combination of thermal-responsive reagents with solid catalyst for catalyzing chemical reactions via a cooperation activation pathway.

Graphical abstract: The cooperation of porphyrin-based porous polymer and thermal-responsive ionic liquid for efficient CO2 cycloaddition reaction

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Publication details

The article was received on 19 Dec 2017, accepted on 21 Jan 2018 and first published on 22 Jan 2018


Article type: Paper
DOI: 10.1039/C7GC03801A
Citation: Green Chem., 2018,20, 903-911
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    The cooperation of porphyrin-based porous polymer and thermal-responsive ionic liquid for efficient CO2 cycloaddition reaction

    J. Chen, M. Zhong, L. Tao, L. Liu, S. Jayakumar, C. Li, H. Li and Q. Yang, Green Chem., 2018, 20, 903
    DOI: 10.1039/C7GC03801A

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