Synthesis of a Pyrazole-Based Microporous Organic Polymer for High-Performance CO2Capture and Alkyne Carboxylation

Yao Cui; Ze Xu; Hai Yan Li; David James Young; Zhi Gang Ren; Hong Xi Li

doi:10.1021/acsapm.0c00592

Synthesis of a Pyrazole-Based Microporous Organic Polymer for High-Performance CO₂Capture and Alkyne Carboxylation

Yao Cui, Ze Xu, Hai Yan Li, David James Young, Zhi Gang Ren, Hong Xi Li

Research output: Contribution to journal › Article › peer-review

Abstract

The methodology for the transformation of CO₂into high-value chemicals is the Holy Grail of sustainable chemistry [ Carter et al. Acc. Chem. Res. 2017, 50, 472-475 ]. Herein, we report the carboxylation of alkynes with CO₂catalyzed by silver nanoparticles (Ag NPs) supported by a microporous organic polymer (MOP) under mild reaction conditions. A pyrazole-based MOP (MOP-PZ) with abundant NH and N═C groups was prepared by Scholl coupling of 3,5-diphenyl-1H-pyrazole. Silver nanoparticles (Ag NPs) were successfully embedded in MOP-PZ to produce a stable MOP-PZ-Ag hybrid material. The as-prepared MOP-PZ and MOP-PZ-Ag materials could absorb significant concentrations of CO₂of 202 and 183.7 mg g^-1, respectively, under 1 bar at 273 K. Multifunctional MOP-PZ-Ag efficiently catalyzed the carboxylation of various terminal alkynes with CO₂to yield propiolic acids under ambient pressure at 50 °C. This heterogeneous catalyst could be recycled five times without significant degradation.

Original language	English
Pages (from-to)	4512-4520
Number of pages	9
Journal	ACS Applied Polymer Materials
Volume	2
Issue number	11
DOIs	https://doi.org/10.1021/acsapm.0c00592
Publication status	Published - 13 Nov 2020

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title = "Synthesis of a Pyrazole-Based Microporous Organic Polymer for High-Performance CO2Capture and Alkyne Carboxylation",

abstract = "The methodology for the transformation of CO2into high-value chemicals is the Holy Grail of sustainable chemistry [ Carter et al. Acc. Chem. Res. 2017, 50, 472-475 ]. Herein, we report the carboxylation of alkynes with CO2catalyzed by silver nanoparticles (Ag NPs) supported by a microporous organic polymer (MOP) under mild reaction conditions. A pyrazole-based MOP (MOP-PZ) with abundant NH and N═C groups was prepared by Scholl coupling of 3,5-diphenyl-1H-pyrazole. Silver nanoparticles (Ag NPs) were successfully embedded in MOP-PZ to produce a stable MOP-PZ-Ag hybrid material. The as-prepared MOP-PZ and MOP-PZ-Ag materials could absorb significant concentrations of CO2of 202 and 183.7 mg g-1, respectively, under 1 bar at 273 K. Multifunctional MOP-PZ-Ag efficiently catalyzed the carboxylation of various terminal alkynes with CO2to yield propiolic acids under ambient pressure at 50 °C. This heterogeneous catalyst could be recycled five times without significant degradation.",

keywords = "alkyne carboxylation, COcapture, heterogeneous catalyst, microporous organic polymer, pyrazole-based MOP",

author = "Yao Cui and Ze Xu and Li, {Hai Yan} and Young, {David James} and Ren, {Zhi Gang} and Li, {Hong Xi}",

year = "2020",

month = nov,

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doi = "10.1021/acsapm.0c00592",

language = "English",

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journal = "ACS Applied Polymer Materials",

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T1 - Synthesis of a Pyrazole-Based Microporous Organic Polymer for High-Performance CO2Capture and Alkyne Carboxylation

AU - Cui, Yao

AU - Xu, Ze

AU - Li, Hai Yan

AU - Young, David James

AU - Ren, Zhi Gang

AU - Li, Hong Xi

PY - 2020/11/13

Y1 - 2020/11/13

N2 - The methodology for the transformation of CO2into high-value chemicals is the Holy Grail of sustainable chemistry [ Carter et al. Acc. Chem. Res. 2017, 50, 472-475 ]. Herein, we report the carboxylation of alkynes with CO2catalyzed by silver nanoparticles (Ag NPs) supported by a microporous organic polymer (MOP) under mild reaction conditions. A pyrazole-based MOP (MOP-PZ) with abundant NH and N═C groups was prepared by Scholl coupling of 3,5-diphenyl-1H-pyrazole. Silver nanoparticles (Ag NPs) were successfully embedded in MOP-PZ to produce a stable MOP-PZ-Ag hybrid material. The as-prepared MOP-PZ and MOP-PZ-Ag materials could absorb significant concentrations of CO2of 202 and 183.7 mg g-1, respectively, under 1 bar at 273 K. Multifunctional MOP-PZ-Ag efficiently catalyzed the carboxylation of various terminal alkynes with CO2to yield propiolic acids under ambient pressure at 50 °C. This heterogeneous catalyst could be recycled five times without significant degradation.

AB - The methodology for the transformation of CO2into high-value chemicals is the Holy Grail of sustainable chemistry [ Carter et al. Acc. Chem. Res. 2017, 50, 472-475 ]. Herein, we report the carboxylation of alkynes with CO2catalyzed by silver nanoparticles (Ag NPs) supported by a microporous organic polymer (MOP) under mild reaction conditions. A pyrazole-based MOP (MOP-PZ) with abundant NH and N═C groups was prepared by Scholl coupling of 3,5-diphenyl-1H-pyrazole. Silver nanoparticles (Ag NPs) were successfully embedded in MOP-PZ to produce a stable MOP-PZ-Ag hybrid material. The as-prepared MOP-PZ and MOP-PZ-Ag materials could absorb significant concentrations of CO2of 202 and 183.7 mg g-1, respectively, under 1 bar at 273 K. Multifunctional MOP-PZ-Ag efficiently catalyzed the carboxylation of various terminal alkynes with CO2to yield propiolic acids under ambient pressure at 50 °C. This heterogeneous catalyst could be recycled five times without significant degradation.

KW - alkyne carboxylation

KW - COcapture

KW - heterogeneous catalyst

KW - microporous organic polymer

KW - pyrazole-based MOP

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Synthesis of a Pyrazole-Based Microporous Organic Polymer for High-Performance CO₂Capture and Alkyne Carboxylation

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