Sun Light Responsive 2D Covalent ‐Organic Frameworks Platform as a Catalysts Boost C‐H Bond Arylation and Dopamine Regeneration

AbstractPhotocatalysis is one of the most promising methods for producing organic compounds with a renewable source of energy. Two-dimensional covalent organic frameworks (2D COFs) are a type of polymer that has developed as a potential light-harvesting catalyst for artificial photosynthesis with a design-controllable platform that might be developed into a new type of cost-effective and metal-free photocatalyst. Here, we present a two-dimensional covalent organic framework synthesis technique as a low-cost and highly efficient visible light active flexible photocatalyst for C-H bond activation and dopamine regeneration. 2D COF were synthesized from tetramino-benzoquinone (TABQ) and terapthaloyl chloride monomer through condensation polymerization reaction and the resultant photocatalyst have remarkable performance due to its visible light-harvesting capacity, appropriate band gap, and highly organized π-electron channels. The synthesized photocatalyst iscapable to convert dopamine into leucodopaminechrome with a higher yield (77.08%) and also capable to activate the C-H bond between4-nitrobenzenediazonium tetrafluoroborate and pyrrole.

Source: Photochemistry and Photobiology - February 16, 2023 Category: Science Authors: Rajnish Kumar Singh, Rajesh K. Yadav, P.P. Pande, Satyam Singh, Pooja Singh, Sarvesh Kumar Gupta, Shivani Gupta, Prateek Khare, Santosh Kumar Tripathi, Dhanesh Tiwary Tags: Research Article Source Type: research