Affiliation:
1. Hebei Key Laboratory of Close-to-Nature Restoration Technology of Wetlands School of Eco-Environment Hebei University 071002 Baoding China
2. School of Chemistry and Chemical Engineering Shanghai Jiao Tong University 200240 Shanghai P. R. China
Abstract
AbstractAmong porous organic polymers (POPs), azo‐linked POPs represent a crucial class of materials, making them the focus of numerous catalytic systems proposed for their synthesis. However, the synthetic process is limited to metal‐catalyzed, high‐temperature, and liquid‐phase reactions. In this study, we employ mechanochemical oxidative metal‐free systems to encompass various syntheses of azo‐based polymers. Drawing inspiration from the “rule of six” principle (six or more carbons on an azide group render the organic compound relatively safe), an azo compound featuring significant steric hindrance is obtained using the hypervalent iodine oxidation strategy. Furthermore, during the polymerization process, steric hindrance is enhanced in monomers to effectively prevent explosions resulting from direct contact between hypervalent iodine oxidants and primary amines. Indeed, this approach provides a facile and innovative solid‐phase synthesis method for synthesizing azo‐based materials.
Funder
National Natural Science Foundation of China
Shanghai Rising-Star Program
Subject
General Chemistry,Catalysis,Organic Chemistry