Mechanochemical Synthesis of 2‐Arylquinoxalines and 3‐Arylquinoxalin‐2(1<i>H</i>)‐ones via Aryldiazonium Salts
Fu Liu, Li‐Ning Chen, Aimin Chen, Zhipeng Ye, Zhiwei Wang, Zhilin Liu, Xian‐Chen He, Shu‐Hui Li, Peng‐Ju Xia
Abstract
Abstract A green synthesis strategy of 2‐arylquinoxalines and 3‐arylquinoxalin‐2(1 H )‐ones via ball milling, which could avoid copious solvent waste, was accomplished in this work. Aryl radicals were produced from aryldiazonium salts by using a solvent‐free or catalyst‐free single electron transfer process induced by mechanical force, affording a series of 2‐arylquinoxalines and 3‐arylquinoxalin‐2(1 H )‐ones with 28%–85 yield. magnified image
Topics & Concepts
ChemistryBall millYield (engineering)CatalysisRadicalSolventArylGreen chemistryElectron transferOrganic chemistryChemical engineeringReaction mechanismMetallurgyEngineeringMaterials scienceAlkylQuinazolinone synthesis and applicationsSynthesis and Biological EvaluationPhenothiazines and Benzothiazines Synthesis and Activities