Alternative formation of amides and β-enaminones from aroyl chlorides using the TiCl<sub>4</sub>-trialkylamine reagent system
作者:Antonella Leggio、Alessandra Comandè、Emilia Lucia Belsito、Marianna Greco、Lucia Lo Feudo、Angelo Liguori
DOI:10.1039/c8ob01536h
日期:——
The TiCl4/NR3 reagent system has been successfully employed for the synthesis of amides and β-enaminones. The reaction of variously substituted benzoyl chlorides with the TiCl4/NR3 reagent system, by using two different experimental procedures (Method A and Method B), afforded alternatively the corresponding amides and β-enaminones as unique or major products. The two developed protocols were investigated
TiCl 4 / NR 3试剂系统已成功用于酰胺和β-烯胺酮的合成。通过使用两种不同的实验程序(方法A和方法B),将各种取代的苯甲酰氯与TiCl 4 / NR 3试剂系统反应,可以交替提供相应的酰胺和β-烯酮,为独特或主要产物。用一系列叔胺研究了两种开发的方案。由TiCl 4的存在调节的反应提供了令人满意的收率的相应酰胺或β-烯酮。本文报道了一种通过芳酰氯与TiCl反应形成碳-碳键的新方法4 / NR 3试剂系统。
Synthetic Route to Enaminones via Metal-Free Four-Component Sequential Reactions of Aryl Olefins with CHCl<sub>3</sub>, Et<sub>3</sub>N, and TBHP
作者:Jiantao Zhang、Peng Zhou、Aiguo Yin、Shuhua Zhang、Weibing Liu
DOI:10.1021/acs.joc.1c00823
日期:2021.7.2
An efficient and modular strategy was used to obtain enaminones with a wide range of functional groups via a four-component sequential reaction. This reaction proceeded under mild conditions without a catalyst in one pot. Furthermore, the products could be transformed into thiadiazoles.