Direct Amination of Nitro(pentafluorosulfanyl)benzenes through Vicarious Nucleophilic Substitution of Hydrogen
作者:Tereza Pastýříková、George Iakobson、Norbert Vida、Radek Pohl、Petr Beier
DOI:10.1002/ejoc.201200127
日期:2012.4
lfanyl)benzene underwent direct amination with 1,1,1-trimethylhydrazinium iodide in the presence of tBuOK in DMSO to give 2-nitro-5-(pentafluorosulfanyl)aniline in good yield. 1-Nitro-3-(pentafluorosulfanyl)benzene, under similar conditions, gave 2-nitro-4-(pentafluorosulfanyl)aniline, also in good yield. Reduction of either product with hydrogen in the presence of Raney nickel provided 4-(pentafl
1-硝基-4-(五氟硫烷基)苯在 tBuOK 存在下在 DMSO 中与 1,1,1-三甲基肼碘化物直接胺化,以良好的收率得到 2-硝基-5-(五氟硫烷基)苯胺。1-硝基-3-(五氟硫基)苯在类似条件下得到2-硝基-4-(五氟硫基)苯胺,产率也很好。在雷尼镍的存在下用氢气还原任一产物可提供 4-(五氟硫烷基)苯-1,2-二胺,它是有效合成含 SF5 的苯并咪唑、喹喔啉和苯并三唑的前体。