financial support from the NSFC(Nos.21871096,22071062,22001077);the Ministry of Science and Technology of the People’s Republic of China(No.2016YFA0602900);the Guangdong Science and Technology Department(Nos.2018B030308007,2021A1515012331);the China Postdoctoral Science Foundation(Nos.2018M643062,2019T120723).
A TEMPO catalyzed cross-dihalogenation reaction was established via redox-regulation of the otherwise complex system of dual electrophilic X+reagents.Formally,the ICl,BrCl,I_(2) and Br_(2) were generated in-situ,which...