Modular and Chemoselective Strategy for the Direct Access to α-Fluoroepoxides and Aziridines via the Addition of Fluoroiodomethyllithium to Carbonyl-Like Compounds
作者:Serena Monticelli、Marco Colella、Veronica Pillari、Arianna Tota、Thierry Langer、Wolfgang Holzer、Leonardo Degennaro、Renzo Luisi、Vittorio Pace
DOI:10.1021/acs.orglett.8b04001
日期:2019.1.18
An expeditious, high-yielding synthesis of rare α-fluoroepoxides and α-fluoroaziridines through the addition of the unkown fluoroiodomethyllithium (LiCHIF)—formed via deprotonation the commercially available fluoroiodomethane with a lithium amide base—to carbonyl-like compounds is documented. The ring-closure reactions, leading to α-fluorinated three-membered heterocycles, rely on the diversely reactive
文献中记载了通过添加未知的氟碘甲基锂(LiCHIF)可以快速,高产地合成稀有的氟碘甲基锂(LiCHIF)的方法,该方法是通过将商业上可获得的氟碘甲烷与酰胺基锂脱质子化而生成的,类似于羰基化合物。导致α-氟化三元杂环的闭环反应依赖于不同的反应性C–I和C–F键。在高度敏感的官能团(醛,酮,腈,烯烃)的存在下,观察到了出色的化学选择性,而这些官能团在同源序列中一直未受影响。