A magnetic carbon nanotube supported Cu catalyst (CoFe2O4/CNT-Cu) was prepared, characterized and evaluated as a recoverable catalyst for synthesis of 3-nitro-2-arylimidazo[1,2-a]pyridines via one-pot three-component reactions of 2-aminopyridines, aldehydes and nitromethane. The reactions proceeded in PEG 400 under aerobic conditions and the products were obtained in good to excellent yields. The catalyst
制备了磁性碳纳米管负载的Cu催化剂(CoFe 2 O 4 / CNT-Cu),表征并评价为可回收的催化剂,可通过一锅三步合成
3-硝基-2-芳基
咪唑并[1,2- a ]
吡啶。 -2-
氨基吡啶,醛和
硝基甲烷的-组分反应。反应在有氧条件下在P
EG 400中进行,并以良好至极好的收率获得产物。该催化剂可以成功地循环使用八次,而不会明显丧失其活性。