KO<sup><i>t</i></sup>Bu-Promoted Halogen-Bond-Assisted Intramolecular C–S Cross-Coupling of <i>o</i>-Iodothioanilides for the Synthesis of 2-Substituted Benzothiazoles
作者:Anuradha Nandy、Govindasamy Sekar
DOI:10.1021/acs.joc.1c02023
日期:2021.11.5
cross-coupling of ortho-iodothioanilides in conjunction with a catalytic quantity of phenanthroline as an additive has been described for the convenient synthesis of 2-substituted benzothiazoles. The methodology is suitable for attaining a wide variety of 2-alkyl- and 2-aryl-substituted benzothiazoles. Single-crystal XRD, DFT calculations, NMR, and UV studies suggest that halogen bonds between the units
已经描述了一种有效且温和的 KO t Bu 促进的邻碘硫代苯胺的分子内 C-S 交叉偶联以及催化量的菲咯啉作为添加剂,用于方便地合成 2-取代苯并噻唑。该方法适用于获得多种 2-烷基和 2-芳基取代的苯并噻唑。单晶 XRD、DFT 计算、NMR 和 UV 研究表明,邻碘硫代苯胺单元之间的卤素键可能有助于电子转移过程。