Base-promoted triple cleavage of CCl<sub>2</sub>Br: a direct one-pot synthesis of unsymmetrical oxalamide derivatives
作者:Alageswaran Jayaram、Vijay Thavasianandam Seenivasan、Karthick Govindan、Yu-Ming Liu、Nian-Qi Chen、Ting-Wei Yeh、Gokulakannan Venkatachalam、Chien-Hung Li、Tsz-Fai Leung、Wei-Yu Lin
DOI:10.1039/d4cc00354c
日期:2024.3.12
novel, eco-friendly and one-pot approach for synthesizing unsymmetrical oxalamides with the aid of dichloroacetamide and amine/amides in the presence of CBr4 in a basic medium. The use of water as a potent supplement for the oxygen atom source and the detailed mechanism have been disclosed. Moreover, the protocol involves triple cleavage of CCl2Br and the formation of new C–O/C–N bonds, with the advantage
我们提出了一种新颖、环保的一锅法,在 CBr 4存在的情况下,在碱性介质中,借助二氯乙酰胺和胺/酰胺合成不对称草酰胺。已经公开了使用水作为氧原子源的有效补充物及其详细机制。此外,该方案涉及CCl 2 Br的三重裂解和新的C-O/C-N键的形成,其优点是使用CBr 4实现选择性溴化,在温和条件下具有良好至优异的产率。该方法还展示了工业应用的前景,其在间歇过程中进行克级合成的有效实施以及在连续流系统中的利用证明了这一点。