Academic Journal
Pyrene-Based Nanoporous Covalent Organic Framework for Carboxylation of C–H Bonds with CO 2 and Value-Added 2‑Oxazolidinones Synthesis under Ambient Conditions
| العنوان: | Pyrene-Based Nanoporous Covalent Organic Framework for Carboxylation of C–H Bonds with CO 2 and Value-Added 2‑Oxazolidinones Synthesis under Ambient Conditions |
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| المؤلفون: | Gulshan Singh, Nidhi Duhan, T. J. Dhilip Kumar, C. M. Nagaraja |
| سنة النشر: | 2024 |
| مصطلحات موضوعية: | Biophysics, Biochemistry, Microbiology, Environmental Sciences not elsewhere classified, Biological Sciences not elsewhere classified, Chemical Sciences not elsewhere classified, various terminal alkynes, various propargylic amines, high surface area, detailed mechanistic path, alkynyl carboxylic acids, producing fine chemicals, catalytic sites decorated, atmospheric pressure conditions, valuable commodity chemicals, selective carbon capture, rising atmospheric co, significant catalytic activity, 2 , 2 , commodity chemicals, catalytic activity, catalytic investigation, mild conditions, ambient conditions, generate 2, catalytic ag, work demonstrates, successful transformation, structural rigidity |
| الوصف: | The selective carbon capture and utilization (CCU) as a one-carbon (C1) feedstock offers dual advantages for mitigating the rising atmospheric CO 2 content and producing fine chemicals/fuels. In this context, herein, we report the application of a porous bipyridine-functionalized, pyrene-based covalent organic framework (Pybpy-COF) for the stable anchoring of catalytic Ag(0) nanoparticles (NPs) and its catalytic investigation for fixation of CO 2 to commodity chemicals at ambient conditions. Notably, Ag@Pybpy-COF showed excellent catalytic activity for the carboxylation of various terminal alkynes to corresponding alkynyl carboxylic acids/phenylpropiolic acids via C–H bond activation under atmospheric pressure conditions. Besides, carboxylative cyclization of various propargylic amines with CO 2 to generate 2-oxazolidinones, an important class of antibiotics, has also been achieved under mild conditions. This significant catalytic activity of Ag@Pybpy-COF with wide functional group tolerance is rendered by the presence of highly exposed, alkynophilic Ag(0) catalytic sites decorated on the pore walls of high surface area (787 m 2 g –1 ) Pybpy-COF. Further, density functional theory calculations unveiled the detailed mechanistic path of the Ag@Pybpy-COF-catalyzed transformation of CO 2 to alkynyl carboxylic acids and 2-oxazolidinones. Moreover, the catalyst showed high recyclability for several cycles of reuse without significant loss in its catalytic activity and structural rigidity. This work demonstrates the promising application of Pybpy-COF for stable anchoring of Ag NPs for successful transformation of CO 2 to valuable commodity chemicals at ambient conditions. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | unknown |
| Relation: | https://figshare.com/articles/journal_contribution/Pyrene-Based_Nanoporous_Covalent_Organic_Framework_for_Carboxylation_of_C_H_Bonds_with_CO_sub_2_sub_and_Value-Added_2_Oxazolidinones_Synthesis_under_Ambient_Conditions/25047979 |
| DOI: | 10.1021/acsami.3c16690.s001 |
| الاتاحة: | https://doi.org/10.1021/acsami.3c16690.s001 https://figshare.com/articles/journal_contribution/Pyrene-Based_Nanoporous_Covalent_Organic_Framework_for_Carboxylation_of_C_H_Bonds_with_CO_sub_2_sub_and_Value-Added_2_Oxazolidinones_Synthesis_under_Ambient_Conditions/25047979 |
| Rights: | CC BY-NC 4.0 |
| رقم الانضمام: | edsbas.8BE605D5 |
| قاعدة البيانات: | BASE |
| DOI: | 10.1021/acsami.3c16690.s001 |
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