Iodide/H2O2 Catalyzed Intramolecular Oxidative Amination for the Synthesis of 3,2′-Pyrrolidinyl Spirooxindoles
作者:Yu-Ting Gao、Xiao-Yang Jin、Qi Liu、An-Di Liu、Liang Cheng、Dong Wang、Li Liu
DOI:10.3390/molecules23092265
日期:——
An ammonium iodide/hydrogen peroxide-mediated intramolecular oxidative amination of 3-aminoalkyl-2-oxindoles was achieved, affording the corresponding 3,2'-pyrrolidinyl spirooxindoles and their 6- or 7-membered analogous in moderate to high yields. This metal-free procedure features very mild reaction conditions, non-toxicity and easily handled hydrogen peroxide as a clean oxidant.
实现了碘化铵/过氧化氢介导的3-氨基烷基-2-氧吲哚的分子内氧化胺化作用,以中等至高收率提供了相应的3,2'-吡咯烷基磺基螺硫醇及其6-或7-元类似物。该无金属工艺具有非常温和的反应条件,无毒且易于处理的过氧化氢作为清洁氧化剂。