Autoxidation/Aldol Tandem Reaction of 2-Oxindoles with Ketones: A Green Approach for the Synthesis of 3-Hydroxy-2-Oxindoles
作者:Qing-Bao Zhang、Wen-Liang Jia、Yong-Liang Ban、Yong Zheng、Qiang Liu、Li-Zhu Wu
DOI:10.1002/chem.201504282
日期:2016.2.18
In the presence of tetrabutylammonium fluoride and molecular sieves (MS) 4 Å in DMF, an efficient autoxidation reaction of 2‐oxindoles with ketones under air at room temperature has been developed. This approach may provide a green, practical, and metal‐free protocol for a wide range of biologically important 3‐hydroxy‐3‐(2‐oxo‐alkyl)‐2‐oxindoles.
在DMF中存在四丁基氟化铵和分子筛(MS)4Å的情况下,已开发出室温下空气中2-氧吲哚与酮的有效自氧化反应。这种方法可能为多种生物学上重要的3-羟基-3-(2-氧代烷基)-2-氧吲哚提供绿色,实用且不含金属的方案。