Nickel supported on magnetic biochar as a highly efficient and recyclable heterogeneous catalyst for the one-pot synthesis of spirooxindole-dihydropyridines was written by Dong, Li-Na;Wang, Ya-Meng;Zhang, Wan-Lu;Mo, Li-Ping;Zhang, Zhan-Hui. And the article was included in Applied Organometallic Chemistry in 2022.Computed Properties of C8H3F2NO2 This article mentions the following:
Magnetic materials show promising applications in heterogeneous catalysis because of their ease of separation and good reusability. The present work reports the design, synthesis, and characterization of a novel magnetic biochar supported nickel catalyst. Fourier IR spectroscopy (FT-IR), powder X-ray diffraction technol. (XRD), scanning electron microscope (SEM), transmission electron microscope (TEM), and vibrating sample magnetometer (VSM) techniques were used for analyzing the prepared catalyst. The prepared catalyst exhibited excellent catalytic activity for synthesis of spirooxindole-dihydropyridine derivatives by a one-pot three-component reaction of isatin, barbituric acid, and 6-amino uracil or 1H-pyrazol-5-amine. This new methodol. demonstrated some important features, including high yields, lower loading of the catalyst, easy work-up, and recyclability of the catalyst for a min. of six times without an obvious decay of catalytic performance. In the experiment, the researchers used many compounds, for example, 5,6-Difluoroindoline-2,3-dione (cas: 774-47-0Computed Properties of C8H3F2NO2).
5,6-Difluoroindoline-2,3-dione (cas: 774-47-0) belongs to indole derivatives. In addition to tryptophan, indigo, and indoleacetic acid, numerous compounds obtainable from plant or animal sources contain the indole molecular structure. Due to this activity, the indole ring system has become an important component or intermediate in the synthesis of heterocycles.Computed Properties of C8H3F2NO2
Referemce:
Indole alkaloid derivatives as building blocks of natural products from Bacillus thuringiensis and Bacillus velezensis and their antibacterial and antifungal activity study,
Preparation of Indole Containing Building Blocks for the Regiospecific Construction of Indole Appended Pyrazoles and Pyrroles