Hexanuclear nickel-substituted silicotungstate as heterogeneous catalyst for construction of benzimidazoles
作者:Lina Jia、Kexin Tan、Ke Li、Bangming Ming、Xiaoling Lin、Yufeng Liu、Guoping Yang
DOI:10.1016/j.mcat.2024.114032
日期:2024.4
The development of heterogeneous catalysts is very important for the chemical industry. [Ni(en)] [Ni(μ-OH)(en)(HO)(B-α-SiWO)]·3.5HO (, en ethylenediamine) is one of the representatives of those semi-open Ni-cluster based polyoxometalates that could be easily synthesized and shows potential catalytic activity in heterogeneous catalytic system. In this work, exhibited high stability and excellent catalytic
多相催化剂的发展对于化学工业非常重要。 [Ni(en)] [Ni(μ-OH)(en)(HO)(B-α-SiWO)]·3.5HO (, en 乙二胺)是半开放镍簇基多金属氧酸盐的代表之一它易于合成,并在多相催化体系中表现出潜在的催化活性。在这项工作中,在室温下醛与苯二胺的缩合反应中表现出高稳定性和优异的催化活性。可以以良好至优异的产率分离一系列苯并咪唑化合物。此外,该多相催化体系可以放大至克级反应,并且可以重复使用5次而活性没有明显下降,显示出其潜在的应用前景。