The oxirane ring of 3-alkyl- and 3-arylglycidic esters has been opened with trifluoromethanesulfonamide (TfNH 2 ) under solid-liquid heterogeneous conditions. The corresponding α-hydroxy-β-triflamido esters were produced in good yields, in a regio- and stereoselective fashion. Several reaction parameters, such as the nature of the base, the presence of a phase transfer catalyst and/or a solvent have
3-烷基-和3-芳基
缩水甘油酯的
环氧乙烷环已在固-液非均相条件下用三
氟甲磺酰胺(TfNH 2 )打开。相应的 α-羟基-β-三甲酰胺酯以良好的产率、区域选择性和立体选择性方式生产。已经检查了几个反应参数,例如碱的性质、相转移催化剂和/或溶剂的存在。