Novel Solvent-Free Reactions with Iodine: Solid–Solid and Solid–Vapor Reactions of 1-Aryl-4-(methylthio)-2-(<i>p</i>-tolylsulfonyl)-1,3-butadienes
作者:Shoji Matsumoto、Kazuhisa Kumazawa、Katsuyuki Ogura
DOI:10.1246/bcsj.76.2179
日期:2003.11
Under “solvent-free” solid–solid and solid–vapor conditions, 1-aryl-4-(methylthio)-2-(p-tolylsulfonyl)-1,3-butadienes (1) react with iodine to form (p-tolylsulfonyl)naphthalene derivatives (2) in high yield. These conditions make the reaction tolerant to the kind of the aryl so that various derivatives of 2 were produced in high yield. The products (2) can be obtained in a nearly pure form by removing co-existing hydrogen iodide and dimethyl disulfide by evaporation. Thus, this process is environmentally benign, because no solvent and water need to get the pure product.
在“无溶剂”固-固和固-气条件下,1-芳基-4-(甲硫基)-2-(对甲苯磺酰基)-1,3-丁二烯(1)与碘反应生成(对甲苯磺酰基) )萘衍生物(2)收率高。这些条件使得反应能够耐受芳基的种类,从而以高产率产生2的各种衍生物。通过蒸发除去共存的碘化氢和二甲基二硫,可以获得几乎纯的产物(2)。因此,该过程对环境无害,因为无需溶剂和水即可获得纯净的产品。