Enhanced Reactivity of [Hydroxy(tosyloxy)iodo]benzene in Fluoroalcohol Media. Efficient Direct Synthesis of Thienyl(aryl)iodonium Salts
作者:Motoki Ito、Chieko Ogawa、Nobutaka Yamaoka、Hiromichi Fujioka、Toshifumi Dohi、Yasuyuki Kita
DOI:10.3390/molecules15031918
日期:——
this manuscript, we report clear evidence for the generation of aromatic cation radicals produced by using [hydroxy(tosyloxy)iodo]benzene (HTIB) in fluoroalcohol solvents such as 2,2,2-trifluoroethanol (TFE) and 1,1,1,3,3,3-hexafluoro-2-propanol (HFIP). The single-electron-transfer (SET) oxidation ability of HTIB to give cation radicals was first established by ESR and UV measurements. The reaction
在这份手稿中,我们报告了在氟醇溶剂如 2,2,2-三氟乙醇 (TFE) 和 1,1,1 中使用 [羟基(甲苯磺酰氧基)碘] 苯 (HTIB) 产生芳香族阳离子自由基的明确证据,3,3,3-六氟-2-丙醇 (HFIP)。HTIB 产生阳离子自由基的单电子转移 (SET) 氧化能力首先通过 ESR 和 UV 测量确定。该反应广泛应用于各种噻吩,通过该方法直接合成了独特的噻吩基碘盐,收率极好,没有产生任何有害的副产物。