A SO3H-group anchored covalent organic framework for the synthesis of hydroxy carbamates in a single step utilizing CO2

Currently, capturing carbon dioxide and converting it into a range of important fine chemicals has acquired more attention as CO2 is an abundant C1 source. In the present work, the synthesis of a SO3H-anchored covalent organic framework (COF) in a single step has been introduced. The as-synthesized...

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Bibliographic Details
Published in:New journal of chemistry 2023-05, Vol.47 (18), p.8885-8893
Main Authors: Mondal, Titu, Jhumur Seth, Sarkar, Somnath, Islam, Sk Manirul
Format: Article
Language:English
Subjects:
Amines
Carbamates (tradename)
Carbon dioxide
Catalysts
Catalytic activity
Chemical synthesis
Covalence
Fine chemicals
Recyclability
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Summary:Currently, capturing carbon dioxide and converting it into a range of important fine chemicals has acquired more attention as CO2 is an abundant C1 source. In the present work, the synthesis of a SO3H-anchored covalent organic framework (COF) in a single step has been introduced. The as-synthesized COF has been characterized by PXRD, FT-IR, N2 adsorption–desorption, TEM, SEM, etc. This SO3H-anchored COF possesses a large surface area. Hence, the SO3H-anchored COF can be used as a catalyst in the carbamate synthesis reaction from epoxides and amines in the presence of CO2. This SO3H-anchored COF has shown excellent catalytic activity with 93% yield for hydroxy carbamate formation. Again, this hydroxy carbamate formation reaction is a single-step reaction, while the as-synthesized SO3H-anchored COF is a metal free covalent organic framework. Moreover, this SO3H-anchored COF acts as a heterogeneous catalyst which can easily be separated out from the reaction mixture for reuse. Also, it has shown promising recyclability up to five times for this hydroxy carbamate formation reaction under mild conditions.
ISSN:1144-0546
1369-9261
DOI:10.1039/d2nj05934g