Green fabrication of ferromagnetic Fe3O4nanoparticles and their novel catalytic applications for the synthesis of biologically interesting benzoxazinone and benzthioxazinone derivatives
摘要:
本文展示了一种利用广泛分布于亚洲的药用植物黄花蒿(A. annua)的叶提取物合成 Fe3O4 纳米粒子的新型绿色方法。通过紫外可见光谱观察了 Fe3O4 纳米粒子的形成。通过 X 射线衍射 (XRD)、透射电子显微镜 (TEM)、能量色散 X 射线分析 (EDAX)、傅立叶变换红外光谱 (FT-IR)、振动样品磁力计 (VSM) 和热重分析 (TGA) 对合成的纳米粒子进行了表征。对 Fe3O4 纳米粒子的 TEM 分析表明,它们呈球形,平均尺寸为 6 纳米。合成的 Fe3O4 纳米粒子被用作催化剂,用于制备具有生物活性的苯并恶嗪酮和苯并恶嗪酮衍生物,产量很高。这些结果表明,合成的 Fe3O4 纳米粒子可用作有机合成催化剂。
RuCl<sub>2</sub>(PPh<sub>3</sub>)<sub>3</sub>-Catalyzed Facile One-Pot Synthesis of 1,2-Dihydro-1-arylnaphtho[1,2-e][1,3]oxazine-3-ones and 1,2-Dihydro-1-arylnaphtho[1,2-e][1,3]oxazine-3-thiones
作者:Xiaoyan Zhu、Yong Rok Lee
DOI:10.5012/bkcs.2012.33.11.3831
日期:2012.11.20
Green fabrication of ferromagnetic Fe<sub>3</sub>O<sub>4</sub>nanoparticles and their novel catalytic applications for the synthesis of biologically interesting benzoxazinone and benzthioxazinone derivatives
作者:Nagaraj Basavegowda、Krishna Bahadur Somai Magar、Kanchan Mishra、Yong Rok Lee
DOI:10.1039/c4nj01155d
日期:——
This paper demonstrates a novel and green approach for the synthesis of Fe3O4 nanoparticles using the leaf extract of Artemisia annua (A. annua), which is widely distributed in Asia as a medicinal plant. The formation of Fe3O4 nanoparticles was observed by UV-Vis spectroscopy. The synthesized nanoparticles were characterized by X-ray diffraction (XRD), transmission electron microscopy (TEM), energy dispersive X-ray analysis (EDAX), Fourier transform infrared (FT-IR) spectroscopy, vibrating sample magnetometry (VSM), and thermogravimetric analysis (TGA). TEM analysis of Fe3O4 nanoparticles showed that they were spherical in shape with an average size of 6 nm. The synthesized Fe3O4 nanoparticles were used as a catalyst for the preparation of biologically interesting benzoxazinone and benzthioxazinone derivatives in high yields. These results showed that the synthesized Fe3O4 nanoparticles could be used as a catalyst in organic synthesis.
本文展示了一种利用广泛分布于亚洲的药用植物黄花蒿(A. annua)的叶提取物合成 Fe3O4 纳米粒子的新型绿色方法。通过紫外可见光谱观察了 Fe3O4 纳米粒子的形成。通过 X 射线衍射 (XRD)、透射电子显微镜 (TEM)、能量色散 X 射线分析 (EDAX)、傅立叶变换红外光谱 (FT-IR)、振动样品磁力计 (VSM) 和热重分析 (TGA) 对合成的纳米粒子进行了表征。对 Fe3O4 纳米粒子的 TEM 分析表明,它们呈球形,平均尺寸为 6 纳米。合成的 Fe3O4 纳米粒子被用作催化剂,用于制备具有生物活性的苯并恶嗪酮和苯并恶嗪酮衍生物,产量很高。这些结果表明,合成的 Fe3O4 纳米粒子可用作有机合成催化剂。