Facile syntheses of 3-trifluoromethylthio substituted thioflavones and benzothiophenes via the radical cyclization
作者:Lu Wang、Huaiyu Wang、Weidong Meng、Xiu-Hua Xu、Yangen Huang
DOI:10.1016/j.cclet.2020.02.040
日期:2021.1
Abstract 3-CF3S substituted thioflavones and benzothiophenes were achieved via the reactions of AgSCF3 with methylthiolated alkynones and alkynylthioanisoles, respectively, promoted by persulfate. This protocol possesses good functional group tolerance and high yields. Mechanistic studies suggested that a classic two-step radical process was involved, which includes addition of CF3S radical to triple
摘要通过AgSCF3分别与过硫酸盐促进的甲基硫醇化炔酮和炔基硫代苯甲醚反应,制得3-CF3S取代的硫代黄酮和苯并噻吩。该方案具有良好的官能团耐受性和高产率。机理研究表明,涉及到经典的两步自由基过程,包括将CF3S自由基添加到三键和带有SMe部分的环化。