Synthesis of Tetrahydro-2<i>H</i>-thiopyran 1,1-Dioxides via [1+1+1+1+1+1] Annulation: An Unconventional Usage of a Tethered C–S Synthon
作者:Xiang-Long Chen、Huai-Yu Wang、Chun-Yan Wu、Bo-Cheng Tang、Yao-Luo Hu、Jin-Tian Ma、Shi-Yi Zhuang、Zhi-Cheng Yu、Yan-Dong Wu、An-Xin Wu
DOI:10.1021/acs.orglett.2c03194
日期:2022.10.21
An unprecedented [1+1+1+1+1+1] annulation process has been developed for the construction of tetrahydro-2H-thiopyran 1,1-dioxides. Notably, rongalite acted as a tethered C–S synthon in this reaction and can be chemoselectively used as triple C1 units and as a source of sulfone. Mechanistic investigation indicated that two different carbon-increasing models are involved in this reaction in which rongalite
已经开发出一种前所未有的 [1+1+1+1+1+1] 环化工艺来构建四氢-2 H-噻喃 1,1-二氧化物。值得注意的是,雕白粉在该反应中充当束缚的 C-S 合成子,可以化学选择性地用作三重 C1 单元和砜的来源。机理研究表明,该反应涉及两种不同的增碳模型,其中雕白粉作为C1单元。