Synthesis of 2-(Methylthio)-1,3-dithioles from 1,3-Dithiole-2-thiones: Important Building Blocks in Tetrathiafulvalene Chemistry
作者:Jeppe Granhøj、Viktor Bliksted Roug Pedersen、Peter Lundgård Krøll、Line Broløs、Mogens Brøndsted Nielsen
DOI:10.1021/acs.joc.3c01369
日期:2023.9.1
2-(Methylthio)-1,3-dithioles are important heterocyclic compounds used for the preparation of redox-active derivatives of tetrathiafulvalene as they serve as precursors for phosphonate esters that can be employed in Horner-Wadsworth-Emmons olefination reactions. Here, we present a mild and less hazardous method than previous methods for converting readily accessible 1,3-dithiole-2-thiones into 2-(methylthio)-1
2-(甲硫基)-1,3-二硫醇是重要的杂环化合物,用于制备四硫富瓦烯的氧化还原活性衍生物,因为它们可作为可用于 Horner-Wadsworth-Emmons 烯化反应的膦酸酯的前体。在这里,我们提出了一种比以前的方法温和且危险性较小的方法,通过用原甲酸三甲酯和 HBF 4 ·Et 2 O 进行甲基化,将容易获得的 1,3-二硫醇-2-硫酮转化为 2-(甲硫基) -1,3-二硫醇并随后用NaBH 4还原。