title: Trisulfur radical anion as the key intermediate for the synthesis of thiophene via the interaction between elemental sulfur and NaOtBu.
abstract: A facile base-promoted sulfur-centered radical generation mode and a single-step protocol for the synthesis of thiophene derivatives using 1,3-diynes via the interaction between elemental sulfur and NaOtBu has been reported. EPR experiments revealed that the trisulfur radical anion acts as a key intermediate of this process. A plausible mechanism has been proposed.
authors.affiliation: †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.
authors.forename: Guoting
authors.initials: G
authors.lastname: Zhang
authors.affiliation: †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Yi
authors.affiliation: †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.
authors.forename: Hong
authors.initials: H
authors.lastname: Chen
authors.affiliation: †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.
authors.forename: Changliang
authors.initials: C
authors.lastname: Bian
authors.affiliation: †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.
authors.forename: Chao
authors.initials: C
authors.lastname: Liu
authors.affiliation: †College of Chemistry and Molecular Sciences, Wuhan University, Wuhan, Hubei 430072, P. R. China.|‡National Research Center for Carbohydrate Synthesis, Jiangxi Normal University, Nanchang 330022, Jiangxi, P. R. China.
authors.forename: Aiwen
authors.initials: A
authors.lastname: Lei