An efficient approach to 3-thioether-functionalized 2,3-dihydrobenzofurans via a metal-free intramolecular radical cyclization/thiolation cascade reaction
作者:Tingting Chen、Renhua Zheng、Jingmiao Yu
DOI:10.1080/00397911.2021.1927098
日期:2021.7.18
Abstract A diverse series of 3-thioether-functionalized 2,3-dihydrobenzofurans were prepared by an intramolecular radical cyclization/thiolation cascade reaction of alkenyl-tethered arenediazonium salts with thiophenols under transition-metal-free conditions. The mild and practical reaction conditions tolerated various functional groups and afforded the corresponding 2,3-dihydrobenzofurans in moderate