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Relevant bibliographies by topics / 4-methylcoumarin derivatives

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Academic literature on the topic '4-methylcoumarin derivatives'

Author: Grafiati

Published: 5 June 2025

Last updated: 1 August 2025

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Journal articles on the topic "4-methylcoumarin derivatives"

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Foti, Mario C., Sunil K. Sharma, Gaurav Shakya, et al. "Biopolyphenolics as antioxidants: Studies under an Indo-Italian CSIR-CNR project." Pure and Applied Chemistry 77, no. 1 (2005): 91–101. http://dx.doi.org/10.1351/pac200577010091.

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A wide variety of polyphenolic compounds (i.e., 4-methylcoumarins, xanthones, pyrazoles, and pyrazolylacrylonitriles) have been examined for their antioxidant effect on NADPH-catalyzed liver-microsomal lipid peroxidation with a view to establishing their structure–activity relationship. Dihydroxy-/diacetoxy-4-methylcoumarin derivatives have been shown to be radical scavengers. The effect of nine different xanthones has been examined on the modulation of cytokine-induced expression of intercellular adhesion molecule-1 (ICAM-1) in human endothelial cells. 1,4-Dihydroxyxanthone showed enhanced an

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Becerra-Anaya, Silvia J., Diego R. Merchán Arenas, and Vladimir V. Kouznetsov. "A Simple and Effective Protocol for the Pechmann Reaction to Obtain 4-Methylcoumarin Derivatives Using a High-Speed Mixer Ball Mill Process." Chemistry 5, no. 2 (2023): 1077–88. http://dx.doi.org/10.3390/chemistry5020073.

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We hereby report a simple and efficient method for the preparation of 4-methylcoumarins series, including Coumarin 120 (7-amino-4-methylcoumarin) from phenols (or naphthols) and ethyl acetoacetate in the presence of 3 mol% InCl3. Coumarins were obtained in good yields (52–92%) through Pechmann condensation, under a rapid and environmentally friendly protocol using a high-speed ball mill mixer at room temperature, with short reaction times, under solvent-free conditions.

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Kuruca, Halid, Baybars Köksoy, Begümhan Karapınar, Mahmut Durmuş, and Mustafa Bulut. "Zinc(II) and chloroindium(III) phthalocyanines bearing ethyl 7-oxy-6-chloro-4-methylcoumarin-3-propanoate groups: Synthesis, characterization and investigation of their photophysicochemical properties." Journal of Porphyrins and Phthalocyanines 22, no. 01n03 (2018): 266–78. http://dx.doi.org/10.1142/s1088424618500220.

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In this study, ethyl 7-hydroxy-6-chloro-4-methylcoumarin-3-propanoate (1), ethyl 7-(2,3-dicyanophenoxy)-6-chloro-4-methylcoumarin-3-propanoate (2), ethyl 7-(3,4-dicyanophenoxy)-6-chloro-4-methylcoumarin-3-propanoate (3), ethyl 4-chloro-5-(7-oxy-6-chloro-4-methylcoumarin-3-propanoate)phthalonitrile (4) were synthesized. The phthalonitrile derivatives (2, 3 and 4) were converted to their peripheral tetra, non-peripheral tetra and peripheral chlorocta substituted zinc(II) and chloroindium phthalocyanine derivatives. All novel compounds were characterized by elemental analysis, FT-IR, [Formula: se

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Lee, Ye-Jin, and Chang-Gu Hyun. "Mechanistic Insights into the Stimulatory Effect of Melanogenesis of 4-Methylcoumarin Derivatives in B16F10 Melanoma Cells." International Journal of Molecular Sciences 25, no. 22 (2024): 12421. http://dx.doi.org/10.3390/ijms252212421.

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Vitiligo is a skin condition characterized by the loss of pigment, resulting in white patches on various parts of the body. It occurs when melanocytes, the cells that are responsible for producing skin pigment, are destroyed or stop functioning. This study aimed to investigate the melanogenic potential of various 4-methylcoumarin (4MC) derivatives, including 6-methoxy-4-methylcoumarin (6M-4MC), 7-methoxy-4-methylcoumarin (7M-4MC), 7-amino-4-methylcoumarin (7A-4MC), 6,7-dihydroxy-4-methylcoumarin (6,7DH-4MC), 7,8-dihydroxy-4-methylcoumarin (7,8DH-4MC), and 6,7-dimethoxy-4-methylcoumarin (6,7DM-

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Lanterna, Anabel E., María González-Béjar, Mathieu Frenette, and Juan C. Scaiano. "Photophysics of 7-mercapto-4-methylcoumarin and derivatives: complementary fluorescence behaviour to 7-hydroxycoumarins." Photochemical & Photobiological Sciences 16, no. 8 (2017): 1284–89. http://dx.doi.org/10.1039/c7pp00121e.

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Šeršeň, F., and M. Lácová. "Antioxidant activity of some coumarins / Antioxidačná activita niektorých kumarínov." Acta Facultatis Pharmaceuticae Universitatis Comenianae 62, s9 (2015): 41–45. http://dx.doi.org/10.1515/afpuc-2015-0011.

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AbstractNineteen derivatives of coumarin were tested on the scavenging of 2,2-diphenyl-1-picrylhydrazyl, hydroxyl and superoxide anion radicals. It was found that antioxidant activity exhibits only such coumarins that contain hydroxyl groups. The derivatives without hydroxyl group showed very low antioxidant effectiveness or they were ineffective. On the other hand, the greatest antioxidant effectiveness was exhibited by coumarin derivatives that contained hydroxyl groups in 6 or 8 position, whereas the effectiveness of derivatives with one hydroxyl group in 4, 5 or 7 position was very low. Ba

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7

Kim, Taejin, Jin-Kyu Kang та Chang-Gu Hyun. "6-Methylcoumarin Promotes Melanogenesis through the PKA/CREB, MAPK, AKT/PI3K, and GSK3β/β-Catenin Signaling Pathways". Molecules 28, № 11 (2023): 4551. http://dx.doi.org/10.3390/molecules28114551.

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We investigated the effects of four coumarin derivatives, namely, 6-methylcoumarin, 7-methylcoumarin, 4-hydroxy-6-methylcoumarin, and 4-hydroxy-7-methylcoumarin, which have similar structures on melanogenesis in a murine melanoma cell line from a C57BL/6J mouse called B16F10. Our results showed that only 6-methylcoumarin significantly increased the melanin synthesis in a concentration-dependent manner. In addition, the tyrosinase, TRP-1, TRP-2, and MITF protein levels were found to significantly increase in response to 6-methylcoumarin in a concentration-dependent manner. To elucidate the mole

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ZAV'YALOV, S. I., O. V. DOROFEEVA, E. E. RUMYANTSEVA, and A. G. ZAVOZIN. "ChemInform Abstract: Synthesis of Hydroxy Derivatives of 4-Methylcoumarin." ChemInform 27, no. 31 (2010): no. http://dx.doi.org/10.1002/chin.199631130.

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Ashok, D., E. V. L. Madhuri, and M. Sarasija. "Green Synthesis of Spiropyranone 3-Aryl-4-Methylcoumarin Derivatives using Carbonyldiimidazole." Asian Journal of Chemistry 32, no. 1 (2019): 205–8. http://dx.doi.org/10.14233/ajchem.2020.22376.

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A series of spiropyranone 3-aryl-4-methylcoumarin derivatives have been synthesized from monospiro-2-hydroxy acetophenone in a novel and efficient green method using imidazolyl intermediates and inorganic base. Imidazolyl intermediates were in turn generated by grinding the respective phenylacetic acid along with carbonyldiimidazole (CDI). Similarly, monospiro-2-hydroxy acetophenone derivatives were prepared selectively by avoiding formation of bis derivatives following literature procedure. The titled compounds were purified by preparative TLC technique and were characterized by IR, 1H NMR, 1

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S., R. Ghantwal, and D. Samant S. "Mannich reaction of 3-hydroxycoumarin and 5,7-dihydroxy-4-methylcoumarin with secondary amines and 1-arylpiperazines." Journal of Indian Chemical Society Vol. 77, Feb 2000 (2000): 100–101. https://doi.org/10.5281/zenodo.5867064.

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Organic Chemistry Research Laboratory, University Department of Chemical Technology, Matunga, Mumbai-400 019, India <em>Manuscript received 8 January 1999, revised 10 August 1999, accepted 13 September 1999</em> The reaction of 3-hydroxycoum aria with 1-arylpiperazines and paraformaldehyde gives the corresponding 4-piperazinylmethyl derivatives. The reaction of 5,7-dihydroxy-4-methylcoumarin with secondary amines/1-arylpiparazines and paraformaldehyde gives the corresponding 6,8-bisaminomethyl derivatives.

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Conference papers on the topic "4-methylcoumarin derivatives"

1

Jumal, Juliana, and Adetunji Fridaos Ayomide. "Synthesis and radical scavenging activity of 6-hydroxyl-4-methylcoumarin and its derivatives." In RECENT ADVANCEMENT ON APPLIED PHYSICS, INDUSTRIAL CHEMISTRY AND CHEMICAL TECHNOLOGY: Proceedings of the International Conference on Recent Advancements in Science and Technology 2017 (ICoRAST2017). Author(s), 2018. http://dx.doi.org/10.1063/1.5041242.

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