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All Journal EduChemia: Jurnal Kimia dan Pendidikan Indonesian Journal of Chemistry
Liandi, Agus Rimus
Department Of Chemistry, Faculty Of Science And Technology, Syarif Hidayatullah State Islamic University Jakarta, Tangerang Selatan 15412, Indonesia
Chemical Engineering, Chemistry & Bioengineering Chemistry Education Materials Science & Nanotechnology

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Green Synthesis and Characterization of Cinnamylideneacetophenone Compound Using Fe3O4 Magnetic as Catalyst Dori Fitria; Antonius Herry Cahyana; Agus Rimus Liandi
EduChemia (Jurnal Kimia dan Pendidikan) Vol 6, No 2 (2021)
Publisher : Department of Chemical Education Faculty of Teacher Training and Education Universitas Su

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (759.808 KB) | DOI: 10.30870/educhemia.v6i2.10412

Abstract

Cinnamaldehyde is a compound found in the skin of cinnamon plants which has various bioactivity. In this study, the compound cinnamaldehyde was modified with the help of Fe3O4 which was synthesized with the help of seaweed extract as a heterogeneous catalyst. Fe3O4-MNPs are synthesized using FeCl3 and Sargassum filipendula extracts as their natural reducing agents. The catalytic ability of Fe3O4 was evaluated in the reaction between cinnamaldehyde and aromatic ketone compounds synthesized by the reflux method. Structure Analysis and elucidation of the synthesized compounds were carried out by measuring the vibrations of the functional groups by FTIR, and the determination of H and C atoms by HNMR and CNMR analysis. The FTIR, proton and carbon NMR analysis have identified that the synthesized product was cinnamylideneacetophenone by the name 1,5-diphenylpyenta-2,4-dien-1-one. The optimum conditions were obtained at a catalyst concentration of 10% w/w for five hours with a yield of 36%. The yield of this reaction was better than the reaction without a catalyst.
Iodine-catalyzed Synthesis, Antibacterial, and Antioxidant Activity of Isatin Derivatives Antonius Herry Cahyana; Agus Rimus Liandi; Yosua Ongkowidjawa
Indonesian Journal of Chemistry Vol 24, No 2 (2024)
Publisher : Universitas Gadjah Mada

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.22146/ijc.84113

Abstract

Isatin is a unique compound with many bioactivities such as antiviral, anti-HIV, antitumor, anti-inflammatory, anticonvulsant, and antifungal. In this study, isatin derivatives were synthesized with an iodine catalyst and tested for antibacterial and antioxidant activities. Isatin derivatives were conducted through a Knoevenagel condensation reaction between isatin and malononitrile. The products were confirmed by thin-layer chromatography, melting point apparatus, FTIR, UV-vis spectroscopy, and LC-MS. The optimum reaction conditions were obtained at 10% mol of catalyst, at boiling point ethanol solvent for 30 min. The yield of the isatin derivative products was 71% (3a), 61% (3b), and 67% (3c). The antibacterial activities of the synthesized compounds were weak activity against S. aureus and E. coli. The antioxidant activity test resulted in IC50 values of 266.47, 220.43, and 654.85 ppm for compounds 3a, 3b, and 3c, respectively. The synthesis method using an iodine catalyst in this reaction offers a higher product yield compared to a catalyst-free reaction.
Co-Authors Antonius Herry Cahyana Antonius Herry Cahyana Dori Fitria Yosua Ongkowidjawa