Unveiling inverse vulcanized polymers as metal-free,visible-light-driven photocatalysts for cross-coupling reactions  

作　　者：Lang Gao Cen Zhou Rui Wang Feng Lan Bohang An Xiaozhou Huang Xiao Zhang 

机构地区：[1]Fujian Key Laboratory of Polymer Science,Fujian Provincial Key Laboratory of Advanced Materials Oriented Chemical Engineering,College of Chemistry and Materials Science,Fujian Normal University,Fuzhou 350007,China [2]Fujian Engineering and Research Center of New Chinese Lacquer Materials,College of Materials and Chemical Engineering,Minjiang University,Fuzhou 350108,China

出　　处：《Chinese Chemical Letters》2024年第4期142-146,共5页中国化学快报（英文版）

基　　金：the National Natural Science Foundation of China (NSFC, Nos. 22071024, 22271047);the Natural Science Foundation of Fujian Province (Nos.2021J06020, 2022J011121);the Top-Notch Young Talents Program of China, and the Science and Technology Project of Minjiang University (No.MJY21027) for generous financial support。

摘　　要：Inverse vulcanized polymers(IVPs) that generated from elemental sulfur and smaller amounts of alkenes have found broad promising applications such as cathode materials for Li-S batteries, dynamic and repairable materials, optics applications, and metal sorption. However, their exploration in organic synthesis is still unprecedented. Here we first report the application of inverse vulcanized polymers in catalysis for organic transformations. A biomass-derived inverse vulcanized polymer(IVP-EAE) is found to be capable of catalyzing cross-coupling reactions in a transition-metal-free fashion under visible light.This method allows the direct C–H functionalization of pyrroles and N-arylacrylamides with(hetero)aryl halides, respectively, leading to the formation of two sets of structurally important scaffolds including pyrrole-containing biaryls and 3,3-disubstituted oxindoles with high selectivity. We anticipate this study will not only unveil the new potential of IVPs, but also offer a distinct type of catalysts for organic transformations.

关 键 词：Cross coupling Inverse vulcanized polymers Metal free PHOTOCATALYST Visible light 

分 类 号：O643.36[理学—物理化学] O644.1[理学—化学] O631