<scp>
NH
<sub>4</sub>
Cl
</scp>
/Zn powder: An efficient, chemoselective reducing catalyst for the microwave‐assisted synthesis of 2,3‐disubstituted quinolines via tandem Knoevenagel condensation
作者:Syed Tasqeeruddin、Yahya I. Asiri、Syeda Shaheen
DOI:10.1002/jhet.4203
日期:2021.2
An efficient, a hitherto unreported, sustainable, and environmentally friendly microwave‐assisted synthesis of 2,3‐disubstituted quinolines by reductive cyclization of 2‐nitrobenzaldehydes and various active methylene compounds via tandem Knoevenagel condensation promoted by an efficient eco‐friendly, chemoselective reducing catalyst ammonium chloride (NH4Cl) and zinc powder was developed. This present
通过2-硝基苯甲醛和各种活性亚甲基化合物通过串联的Knoevenagel缩合反应进行的高效环合缩合反应,通过高效的生态友好型,化学选择性还原催化剂促进的高效,迄今未报道的,可持续的,环境友好的微波辅助合成2,3-二取代的喹啉开发了氯化铵(NH 4 Cl)和锌粉。本方法学是一种温和,绿色,高效且对环境有益的方法,因为它消除了苛刻的反应条件,非挥发性溶剂,相对昂贵的试剂,高催化剂负载量,并且还提供了许多其他好处,例如快速合成,简单反应设置,并达到产品的优异产量。