期刊
IRANIAN JOURNAL OF SCIENCE AND TECHNOLOGY TRANSACTION A-SCIENCE
卷 44, 期 4, 页码 1011-1023出版社
SPRINGER INT PUBL AG
DOI: 10.1007/s40995-020-00920-5
关键词
MgMnO3; SrMnO3; Polyhydroquinoline; Hydrothermal; Solid-state reaction; Experimental design; Catalytic performance
资金
- Chemistry Department, Semnan University of Iran
Spinel-type oxide MgMnO(3)and perovskite-type oxide SrMnO(3)have been synthesized by two-step procedures comprising the hydrothermal and solid-state methods. The as-prepared catalysts were characterized by X-ray powder diffraction, Fourier transform infrared spectroscopy, thermogravimetric analysis and the morphologies of the synthesized materials were figured out by field emission scanning electron microscopy. The catalytic performance of synthesized materials were investigated by synthesizing the polyhydroquinolines, which was used Design-Expert software and response surface methodology (central composite design) for optimization of reaction efficiently. The comparison study illustrates that MgMnO(3)has better catalytic performance than SrMnO(3)and optimized condition for the synthesis of polyhydroquinoline (which is produced by the reaction of ethyl acetoacetate, benzaldehyde, dimedone and ammonium acetate) was found to be 8 mg of MgMnO(3)as the catalyst, 33 min for the reaction time and 100 degrees C for the reaction temperature. This condition was used for the synthesis of other polyhydroquinoline derivatives.
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