In Situ Prepared Solar Light‐Driven Flexible Actuated Carbon Cloth‐Based Nanorod Photocatalyst for Selective Radical–Radical Coupling to Vinyl Sulfides

• Published in: Photochemistry and photobiology Vol. 97; no. 5; pp. 955 - 962
• Main Authors: Singh, Chandani, Yadav, Rajesh K., Kim, Tae Wu, Upare, Pravin P., Gupta, Abhishek Kumar, Singh, Atul P., Yadav, Bal Chandra, Dwivedi, Dilip K.
• Format: Journal Article
• Language: English
• Published: United States Blackwell Publishing Ltd 01.09.2021
• Subjects: Activated carbon; Benzoquinone; Charge transfer; Chemical synthesis; Cloth; Condensates; Coupling; Fine chemicals; Harvesters; Nanorods; Oxidation; Photocatalysts; Photochemistry; Selectivity; Sulfides; Supports
• ISSN: 0031-8655; 1751-1097
• DOI: 10.1111/php.13412

A global challenge faced by light harvesting photocatalyst is how to promote the selective organic transformation, such as C‐S bond formation via radical–radical coupling under solar light. Here, we report a two‐dimensional covalent organic frameworks (2D‐COFs), poly (perylene‐imide‐benzoquinone) nanorod through in situ condensation on flexible activated carbon cloth (PPIBNR‐FACC) to function as a light harvester material for highly selective radical–radical coupling to vinyl sulfides (i.e. C‐S bond activation). Such a structure supports charge transfer from PPIBNR to FACC, which is essential for the selective radical–radical coupling. Hence, organic transformation is attaining high yields and selectivity (˜99%) under solar light using in situ prepared PPIBNR‐FACC photocatalyst. The structural virtues of PPIBNR‐FACC will trigger the utmost investigations into designable and versatile 2D‐COFs for fine chemical synthesis. Newly designed metal‐free and highly efficient PPIBNR‐FACC photocatalyst was used for the production of vinyl sulfides under the irradiation of solar light and showed the superb production yield for the formation of vinyl sulfides via Markovnikov‐selective radical–radical coupling. This study may exhibit the potential applicability of PPIBNR‐FACC photocatalyst in medicinal chemistry.