Sunlight sparks spectacular C(sp3)─H bond arylation: Rod shape ACC@MeF composite shines bright in 2,4‐dinitrophenylhydrazine reaction

The solar light responsive selective C(sp3)─H bond activation by photocatalytic pathway using graphene platform as photocatalyst is a green and sustainable route to achieve value‐added chemicals on gram scale synthesis. Graphene has low activity due to fast recombination charges, band gap suitability problems, and inefficient solar light absorption ability. Therefore, activated carbon cloth‐based nitrogen‐rich phenolic resin was developed from melem and formaldehyde. The ACC@MeF light‐harvesting composite demonstrates outstanding light‐harvesting capability, leading to enhanced photocatalytic performance in C(sp3)─H bond formation, suitability of band gap, high molar extinction coefficient and high thermal stability. The development of metal‐free activated carbon cloth‐based melem formaldehyde resin for the solar light photocatalytic transformation of organic compounds is anticipated to have broad‐reaching applications. In this context, a graphical abstract image visually presents a pioneering investigation revealing the impressive effectiveness of utilizing sunlight to drive C(sp3)‐H bond arylation, facilitated by a rod‐shaped ACC@MeF composite in the presence of 2,4‐dinitrophenylhydrazine. This inventive composite material demonstrates outstanding photoactivity when exposed to sunlight, demonstrating unparalleled efficacy in catalyzing C(sp3)‐H bond arylation reactions.