A green synthesis strategy of 2-arylquinoxalines and 3-arylquinoxalin-2(1H)-ones via ball milling, which could avoid copious solvent waste, was accomplished in this work. Aryl radicals were produced from aryldiazoniumsalts by using a solvent-free or catalyst-free single electron transfer process induced by mechanical force, affording a series of 2-arylquinoxalines and 3-arylquinoxalin-2(1H)-ones with
本工作通过球磨实现了一种避免大量溶剂浪费的2-芳基喹喔啉和3-芳基喹喔啉-2(1 H )-酮的绿色合成策略。通过使用由机械力诱导的无溶剂或无催化剂的单电子转移过程从芳基重氮盐产生芳基自由基,得到一系列 2-arylquinoxaline 和 3-arylquinoxalin-2(1 H )-ones,其含量为 28%–85屈服。
DMSO/tBuONa/O2-Mediated Efficient Syntheses of Diverse Quinoxalines through α-imino Radicals
作者:Chihong Zhang、Zhen Zhang、Deliang Wang、Wenkun Wang、Bo Jin、Tao Wen、Lihua Ye、Zhong-Ning Chen、Hu Cai
DOI:10.1039/d3cc00086a
日期:——
Herein, we described an efficient method involving the synthesis of diverse quinoxalines using DMSO/tBuONa/O2 system as single-electron oxidants to form α-imino radicals and nitrogen radicals for the direct construction of...