Chemistry of Organo Halogenic Molecules. 140. Role of the Reagent Structure on the Transformations of Hydroxy Substituted Organic Molecules with the<i>N</i>-Fluoro Class of Fluorinating Reagents
作者:Marko Zupan、Jernej Iskra、Stojan Stavber
DOI:10.1246/bcsj.68.1655
日期:1995.6
Hydroxy-substituted organic molecules were used as target molecules in investigations of the role of the reagent structure on the reactivity of three types of N–F class fluorinating reagents: 1-chloromethyl-4-fluoro-1,4-diazoniabicyclo[2.2.2]octane bis(tetrafluoroborate) F-TEDA (1a), N-fluorobis(phenylsulfonyl)amine NSF (1b), and N-fluoropyridinium heptafluorodiborate–pyridine (1/1) NFP (1c). Methanol
羟基取代的有机分子被用作研究试剂结构对三种 N-F 类氟化试剂反应性的作用的目标分子:1-氯甲基-4-氟-1,4-重氮二环[2.2.2 ]辛烷双(四氟硼酸盐)F-TEDA(1a)、N-氟双(苯磺酰基)胺NSF(1b)和N-氟吡啶鎓七氟二硼酸盐-吡啶(1/1)NFP(1c)。甲醇是稳定的,但氢醌在乙腈中在室温下很快与 F-TEDA 转化为醌;另一方面,NSF 的反应性较低,而 NFP 的氧化只能在升高的温度下实现;氢醌衍生物的结构变化不影响氧化。用单羟基取代的芳族化合物实现氟化;