A widely used Lewis acid BF3·Et2O was shown to be capable of acting as an efficient fluorinating agent in an intramolecular aminofluorination reaction of homoallylic amines to provide 3-fluoropyrrolidines mediated by a commercially available hypervalent iodine(III) reagent PhIO at room temperature. A mechanism involving a carbocation intermediate was proposed on the basis of several experimental evidence
研究表明,广泛使用的
路易斯酸BF 3 ·Et 2 O可以在均胺的分子内
氨基
氟化反应中充当有效的
氟化剂,从而在室温下提供由市售高价
碘(III)试剂PhIO介导的3-
氟吡咯烷酮。温度。根据一些实验证据,提出了一种涉及碳正离子中间体的机理。