Iodine-catalyzed N -sulfonylation of benzotriazoles with sodium sulfinates under mild conditions
作者:Si-Xue Wu、Yi-Kun Zhang、Hong-Wei Shi、Jie Yan
DOI:10.1016/j.cclet.2016.03.024
日期:2016.9
A new and convenient procedure is developed for the preparation of N-sulfonylbenzotriazoles from sodium sulfinates and benzotriazoles using molecular iodine as catalyst via the SN bond formation reaction. This catalytic radical sulfonylation proceeds efficiently in air at room temperature under neutral conditions, and in short reaction time, to afford the corresponding N-sulfonylbenzotriazoles in good
Convenient sulfonylation of benzotriazoles with the in situ–generated sulfonyl bromides
作者:Sixue Wu、Yikun Zhang、Jie Yan
DOI:10.1080/00397911.2016.1209684
日期:2016.9.1
ABSTRACT A convenient procedure is developed for the preparation of N-sulfonylbenzotriazoles from sodium sulfinates, benzotriazoles, and sodium bromide in the present of m-chloroperbenzoic acid as oxidant. This radical sulfonylation proceeds efficiently at room temperature under neutral conditions, affording the corresponding N-sulfonylbenzotriazoles in moderate to good yields in a short time. GRAPHICAL