Synthesis of [Zn(ΙΙ)BHPPDAH] as New Heterogeneous Catalyst without Being Immobilized on Any Support and Applied for Mannich Reaction
作者:Reza Khalifeh、Hashem Sharghi、Zahra Rashidi
DOI:10.1002/hc.21103
日期:2013.9
In this paper, a novel heterogeneous complex of zinc with N,N-bis(2-hydroxyphenyl)pyridine-2,6-dicarboxamide(BHPPDAH) was synthesized. The catalyst was found to be a highly effective catalyst for the three-component coupling reactions of aldehydes, alkynes, and amines (A3 coupling) via C–H activation. The reactions could be applied to both aromatic and aliphatic aldehydes and alkynes. Nearly quantitative
本文合成了一种新型的锌与N,N-双(2-羟基苯基)吡啶-2,6-二甲酰胺(BHPPDAH)的异质络合物。发现该催化剂是通过 C-H 活化进行醛、炔和胺的三组分偶联反应(A3 偶联)的高效催化剂。该反应可应用于芳香族和脂肪族醛和炔烃。在大多数情况下,获得了几乎定量的所需产物。反应在没有任何助催化剂或活化剂的情况下进行,水是唯一的副产物。通过简单的过滤从反应中定量回收催化剂,并以几乎一致的活性重复使用五个循环。