New 4-pentafluorosulfanyl and 4-perfluoroalkylthio derivatives of 1-chloro-2-nitro- and 1-chloro-2,6-dinitrobenzenes
作者:Alexey M. Sipyagin、Vyacheslav S. Enshov、Sergei A. Kashtanov、Colin P. Bateman、Brian D. Mullen、Ying-Teck Tan、Joseph S. Thrasher
DOI:10.1016/j.jfluchem.2004.03.008
日期:2004.9
New 4-pentafluorosulfanyl and 4-perfluoroalkylthio derivatives of 1-chloro-2-nitrobenzene and 1-chloro-2,6-dinitrobenzene were prepared from the corresponding bis(4-chloro-3-nitrophenyl)disulfide and bis(4-chloro-3,5-dinitrophenyl)disulfide, respectively. The SF5 derivatives were obtained by fluorination of the disulfides with AgF2 according to Sheppard’s method, while perfluoroalkylation was carried
由相应的双(4-氯-3-硝基苯基)二硫化物和双(4-氯-硝基)合成1-氯-2-硝基苯和1-氯-2,6-二硝基苯的新的4-五氟硫烷基和4-全氟烷硫基衍生物。 3,5-二硝基苯基)二硫化物。通过用AgF 2氟化二硫化物获得SF 5衍生物根据Sheppard方法,通过与氙(II)双(全氟烷基羧酸盐)的热解反应进行全氟烷基化。将含氟的吸电子取代基引入芳环(在其他失活基团存在下)可增强卤素取代基向亲核进攻的活化。用这些化合物进行了几次亲核取代反应,结果,一些含N和S的基团被引入苯环中。例如,先前未知的SF 5,CF 3 S,和C 2 ˚F 5氟乐灵第类似物(氟乐灵®)已准备好并进行了特征化。在新的1-氯-2,6-二硝基苯衍生物与硫代乙醇酸乙酯反应的基础上,提出了杂环化学的其他合成可能性,其中以苯并噻唑N-氧化物的含氟衍生物为主要产物。