A new pathway to pyrrolo[1,2-a]quinoxalines via solvent-free one-pot strategy utilizing FeMoSe nanosheets as efficient recyclable synergistic catalyst
作者:Tuong A. To、Chuc T. Nguyen、My H.P. Tran、Thai Q. Huynh、Tung T. Nguyen、Nhan T.H. Le、Anh D. Nguyen、Phong D. Tran、Nam T.S. Phan
DOI:10.1016/j.jcat.2019.07.008
日期:2019.9
spectroscopic and microscopic analyses. The FeMoSe material offered high catalytic activity in the synthesis of pyrrolo[1,2-a]quinoxalines via solvent-free one-pot strategy starting from 2-nitroanilines. Compared to previous works, the significant advantages of our protocols are: (i) solvent-free simple, direct synthesis; (ii) using phenylacetic acids as both Brønsted acid catalysts and reactants; (iii) no requirement
FeMoSe纳米催化剂是采用溶剂热法从易得的前驱体(Mo(CO)6,FeSO 4和Se )合成的,并通过光谱和显微镜分析对其进行了表征。FeMoSe材料通过从2-硝基苯胺开始的无溶剂一锅策略在吡咯并[1,2- a ]喹喔啉的合成中提供了高催化活性。与以前的工作相比,我们的方案的显着优势是:(i)无溶剂的简单直接合成;(ii)使用苯乙酸作为布朗斯台德酸催化剂和反应物;(iii)不需要任何外部氧化剂或还原剂;(iv)用于环化的可循环使用的非均相催化剂。据我们所知,吡咯并[1,2- a以前没有报道使用这种协同双金属系统的]喹喔啉。