Substituent modulation of mild fluorination of aromatic molecules with caesium fluoroxysulphate
作者:Stojan Stavber、Zdenka Planinšek、Iztok Košir、Marko Zupan
DOI:10.1016/s0022-1139(00)80337-1
日期:1992.12
benzene derivative with CsSO4F has been modulated by substituents on the benzene ring. α-Hydroxyalkylbenzenes, with a deactivated ring, were oxidized to phenones, while fluorodealkylation was achieved in high yield when electron-donating groups were present in a para position. Electron-withdrawing substituents favoured chain fluorofunctionalization in alkylbenzenes, while ring fluorination was found
用CsSO 4 F取代单取代和二取代的苯衍生物的功能已被苯环上的取代基所调节。具有失活环的α-羟基烷基苯被氧化为苯酮,而当给电子基团存在于对位时,可以高收率实现氟脱烷基化。吸电子取代基有利于烷基苯中的链氟官能化,而环氟化仅存在于酰基氨基衍生的烷基苯中。在ρ-烷氧基取代的烷基苯衍生物的情况下,形成氟加成产物。