infrared (FT‐IR) spectroscopy, inductively coupled plasma (ICP), X‐ray diffraction (XRD) and scanning electron microscopy (SEM). The achievements demonstrated that the proposed agents were beneficial to synthesis the derivatives of β‐aminoketone. Moreover, it was possible to recover the catalyst by means of simple magnetic decantation quickly. Besides, no reduction in the activity of the catalyst occurred
合成了一种新的纳米磁性核-壳Fe 3 O 4 @quillaja sapogenin / Ni(II),并通过包括能量分散X射线光谱法(EDS),Brunauer-Emmett-Teller(BET),热分析的各种测试进行了全面表征重力分析(TGA),高分辨率透射电子显微镜(HR‐
TEM),振动样品磁力计(VSM),傅里叶变换红外(FT‐IR)光谱,电感耦合等离子体(ICP),X射线衍射(XRD)和扫描电子显微镜(
SEM)。研究结果表明,所提出的试剂有利于合成β的衍
生物。
氨基酮 而且,可以通过简单的磁性倾析快速地回收催化剂。此外,即使被用于各种反应中,也没有降低催化剂的活性。