UV Assisted High‐Efficient Synthesis of α‐Ketoamides using Air Promoted by A Non‐Metal Catalyst in Aqueous Solution
作者:Jianhui Li、Shaopo He、Kuan Zhang、Ziyi Quan、Qiheng Shan、Zhongliang Sun、Bo Wang
DOI:10.1002/cctc.201801365
日期:2018.11.7
(λ=210 nm) promoted procedure proceeding in aqueous media at room temperature using ambient air as the oxidant for efficient synthesis of an array of α‐ketoamides of all types using a non‐metal catalyst N‐iodosuccinimide with a loading of 20 mol%. With UV, oxygen in the air was efficiently utilized as the green oxidant, some control experiments were carried out and a plausible mechanism was proposed
这里展示的是第一个紫外线(λ= 210 nm)促进程序在室温下在水性介质中使用环境空气作为氧化剂的程序,该程序可以使用非金属催化剂N-有效合成各种类型的α-酮酰胺。负载量为20摩尔%的碘代琥珀酰亚胺。利用紫外线,空气中的氧气被有效地用作绿色氧化剂,进行了一些控制实验,并提出了一个合理的机理,揭示了在水溶液中,氧化过程实际上是由双氧自由基(O 2 .-),而不是分子氧。各种仲胺和伯胺以及氨水被用作胺基团,所需的伯,仲和叔α-酮酰胺产品可提供高达96%的良好至极佳收率。