已开发出一种新的,稳健而可靠的方法,使用TFA / Et 3 SiH作为试剂组合,可以通过一些官能化的缩醛选择性地将伯和仲芳族胺进行N-烷基选择性还原。一锅法可以在室温下以优异的收率合成多种不对称取代的乙二胺。与以前的合成方法相比,该新方法具有明显的优势,包括简洁,温和的反应条件,优异的收率和较高的官能团耐受性。
A sample and practical colorimetric naked-eye chemosensor 3-nitro-4-ethylenediamido-nitrobenzene(2) for metal cations was designed and synthesized. It displays high selectivity and sensitivity for Cu2+ by the UV absorption which appeared a new peak at 525 nm and color change from yellow to red by naked-eye in CH3OH/H2O pH 7.6. (C) 2008 Elsevier B.V. All rights reserved.
Direct, One-Pot Reductive Alkylation of Anilines with Functionalized Acetals Mediated by Triethylsilane and TFA. Straightforward Route for Unsymmetrically Substituted Ethylenediamine
A new, robust, and reliable method has been developed for the selective reductive N-alkylation of primary and secondary aromatic amines with some functionalized acetals using TFA/Et3SiH as a reagent combination. A variety of unsymmetrically substituted ethylenediamines can be synthesized in a one-pot procedure in excellent yields at room temperature. This new procedure offers significant advantages
已开发出一种新的,稳健而可靠的方法,使用TFA / Et 3 SiH作为试剂组合,可以通过一些官能化的缩醛选择性地将伯和仲芳族胺进行N-烷基选择性还原。一锅法可以在室温下以优异的收率合成多种不对称取代的乙二胺。与以前的合成方法相比,该新方法具有明显的优势,包括简洁,温和的反应条件,优异的收率和较高的官能团耐受性。