title: Synthesis of 1-(2,3-dihydrobenzofuran-3-yl)-methanesulfonohydrazides through insertion of sulfur dioxide.
abstract: A three-component reaction of 2-(allyloxy)anilines, sulfur dioxide and hydrazines under mild conditions is developed, which gives rise to 1-(2,3-dihydrobenzofuran-3-yl)-methanesulfonohydrazides in good yields. This radical process involves an intramolecular 5-exo-cyclization and insertion of sulfur dioxide.
authors.affiliation: Department of Chemistry, Fudan University, 220 Handan Road, Shanghai 200433, China. jie_wu@fudan.edu.cn.
authors.forename: Yuanyuan
authors.initials: Y
authors.lastname: An
authors.forename: Danqing
authors.initials: D
authors.lastname: Zheng
authors.forename: Jie
authors.initials: J
authors.lastname: Wu