magnetometer (VSM). The impact of Fe3O4@SiO2@(CH2)3NH(CH2)2O2P(OH)2 was carefully considered in the synthesis of benzo-[h]quinoline-4-carboxylic acids via a three component reaction of aryl aldehydes, naphtylamine, and pyrovic acid in the absence of solvent. The suggested mechanism proposed an anomeric based oxidation route for final step of the described synthesis. The described catalyst was recycled and
本研究合成了具有磁性的新型可回收纳米催化剂Fe 3 O 4 @SiO 2 @(CH 2)3 NH(CH 2)2 O 2 P(OH)2。通过热重量分析/差热分析(TGA / DTA),透射电子显微镜(
TEM),配备能量色散光谱(EDS)的场发射扫描电子显微镜(FE
SEM),元素图谱分析,傅里叶确认了新型纳米催化剂的表征变换红外(FT-IR)光谱和振动样品磁力计(VSM)。Fe 3 O 4 @SiO 2的影响通过芳基醛,
萘胺和pyrovic的三组分反应合成苯并[ h ]
喹啉-4-羧酸时,仔细考虑了@(CH 2)3 NH(CH 2)2 O 2 P(OH)2在无溶剂的情况下呈酸性。建议的机理为所述合成的最后步骤提出了基于端基的氧化途径。所描述的催化剂被循环使用,在六次运行后产率和反应时间没有明显降低。