期刊
INORGANIC CHEMISTRY COMMUNICATIONS
卷 147, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.inoche.2022.110225
关键词
MCM-41; Samarium; Complexes; 1H-tetrazoles
Samarium (III) complex immobilized in MCM-41 was synthesized and characterized. The catalysts showed the attachment of 3,4,5-tri hydroxyphenyl acetic acid ligand and Sm ions to the MCM-41 host. These catalysts exhibited good performance in the synthesis of 5-substituted 1H-tetrazoles through [3 + 2] cycloaddition with NaN3. The catalyst also showed excellent recyclability without significant loss of activity for up to six cycles.
Samarium (III) complex immobilized in MCM-41 were synthesized via post-functionalization modification of MCM-41. The catalysts were characterized by Fourier transforms infrared (FT-IR) spectra, powder X-ray diffraction (XRD), scanning electron microscopy (SEM), and thermogravimetric analyses (TGA). The results show that the 3,4,5-tri hydroxyphenyl acetic acid ligand and Sm ions are attached to the MCM-41 host. The catalysts were tested in the synthesis of 5-substituted 1H-tetrazoles. This catalyst is an efficient catalyst for [3 + 2] cycloaddition with NaN3 to prepare 5-substituted 1H-tetrazoles. The catalyst was recycled for up to six cycles without significant loss of activity.
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