title: Metal-free synthesis of 2-aminonaphthalenes by intramolecular transannulation of 1-sulfonyl-4-(2-alkenylphenyl)-1,2,3-triazoles.
abstract: A facile metal-free synthesis of naphthalenes by intramolecular transannulation of 1-sulfonyl-4-(2-alkenylphenyl)-1,2,3-triazoles was realized. The in situ formed ketenimine was proposed as the key intermediate, and the desired 2-aminonaphthalenes were generated in up to 87% yield in refluxing 1,2-dichloroethane without any catalyst or additive.
authors.affiliation: Department of Chemistry, Zhejiang Sci-Tech University, Xiasha West Higher Education District, Hangzhou, 310018, China. licy@zstu.edu.cn.
authors.forename: Ze-Feng
authors.initials: ZF
authors.lastname: Xu
authors.forename: Xing
authors.initials: X
authors.lastname: Yu
authors.forename: Dongdong
authors.initials: D
authors.lastname: Yang
authors.forename: Chuan-Ying
authors.initials: CY
authors.lastname: Li