نویسندگان | Ali Allahresani,Zahra Amini Moqadam,Hassan Hassani |
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نشریه | Research on Chemical Intermediates |
شماره صفحات | 299-311 |
شماره سریال | 46 |
شماره مجلد | 1 |
ضریب تاثیر (IF) | 1.369 |
نوع مقاله | Full Paper |
تاریخ انتشار | 2019 |
رتبه نشریه | ISI |
نوع نشریه | الکترونیکی |
کشور محل چاپ | هلند |
نمایه نشریه | JCR،Scopus |
چکیده مقاله
NiO@g-C3N4 as an efficient catalyst for the synthesis of spirooxindole derivatives was prepared by impregnation of g-C3N4 with NiO nanoparticles and characterized by various techniques including thermogravimetric analysis, transmission electron microscopy, X-ray diffraction and Fourier transform infrared spectroscopy. The one-pot synthesis of spirooxindole derivatives using 1 mmol isatin, 1 mmol dimedone (or 4-hydroxycoumarin or ethyl acetoacetate) and 1 mmol malononitrile was carried out in the presence of 50 mg NiO@g-C3N4 in EtOH media at reflux conditions. The results showed that both series of reactions had short reaction times (less than 7 min) and high reaction efficiency (greater than 87%). Some advantages can be cited for this method, including short reaction time, excellent yields, easy workup and a reusable and inexpensive nanocatalyst.
tags: 4-Hydroxycoumarin · Dimedone · Isatin · Malononitrile · NiO@g-C3N4 · Spirooxindole derivatives