Synthesis of C<sub>6</sub>F<sub>5</sub>-Substituted Aminoethanols via Acetate Ion Mediated C<sub>6</sub>F<sub>5</sub>-Group Transfer Reaction
作者:Alexander D. Dilman、Vitalij V. Levin、Pavel A. Belyakov、Alexander A. Korlyukov、Marina I. Struchkova、Mikhail Y. Antipin、Vladimir A. Tartakovsky
DOI:10.1055/s-2006-926278
日期:——
A new approach for the synthesis of N-(pentafluorophenylmethyl)aminoethanols is developed. The method includes alkylation of imines with 2-tris(pentafluorophenyl)silyloxyethyl triflate, prepared from ethylene oxide and (C6F5)3SiOTf, to give 2-silyloxyethyliminium ions. Their treatment with sodium acetate induces C-C bond formation proceeding as transfer of the C6F5 group from the five-coordinate silicate intermediate to the iminium center.
本研究开发了一种合成 N-(五氟苯基甲基)氨基乙醇的新方法。该方法包括用环氧乙烷和 (C6F5)3SiOTf 制备的 2-三(五氟苯基)硅氧基乙基三酸酯对亚胺进行烷基化,从而得到 2-硅氧基乙基亚胺离子。它们经醋酸钠处理后,C-C 键形成的过程是 C6F5 基团从五配位硅酸盐中间体转移到亚胺中心的过程。