A simple procedure for the perfluoroalkylation of the aromatic ring of phenols under mildly basic conditions is described. Treatment of a variety of phenols with perfluoroalkyl iodide in the presence of the radical initiator V-70L and Cs2CO3 provided the corresponding perfluoroalkylated products in moderate to good yields. Generally, the reaction proceeded smoothly at room temperature to yield regioselectively
描述了在温和碱性条件下苯酚芳环全氟烷基化的简单程序。在自由基引发剂V-70L和Cs 2 CO 3的存在下用全氟烷基碘处理各种酚,以中等至良好的产率提供了相应的全氟烷基化产物。通常,反应在室温下平稳进行,得到区域选择性的全氟烷基化产物。
Pozzi, Gianluca; Cavazzini, Marco; Cinato, Flavio, European Journal of Organic Chemistry, 1999, # 8, p. 1947 - 1955
A recyclable Grubbs-Hoveyda second-generation catalyst activated by a light fluorous tag was prepared The modified light fluorous catalyst exhibited higher catalytic activity than the parent or the previously reported light fluorous variant for RCM reactions and could be routinely recovered The light fluorous tag incorporated in the catalyst served as both an activator as well as a handle for separation and recovery with fluorous solid-phase extraction
Efficient aerobic epoxidation of alkenes in perfluorinated solvents catalysed by chiral (salen) Mn complexes
作者:Gianluca Pozzi、Flavio Cinato
DOI:10.1039/a800558c
日期:——
Chiral complexes selectively soluble in perfluorocarbons have been synthesized for the first time and tested as catalysts for the epoxidation of alkenes under fluorous biphasic conditions.