Abstract
New 1-hexadecyl derivatives of isatin containing substituents of various natures in the 5-position have been synthesized and characterized. The kinetics of their photoreduction by visible radiation in the presence of 4-methyl-N,N-dimethylaniline and triethylamine has been studied. It has been found that the photoreduction rate constant increases in the following order of substituted isatins: CH3 < H < Cl < Br. It is shown that the isatin–amine system initiates photopolymerization of oligocarbonate dimethacrylate OKM-2 by visible light. The efficiency of photoinitiation correlates with the activity of isatins in the photoreduction reaction.
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Funding
This work was supported by the Russian Science Foundation, project no. 21-73-00283. The work was performed using the equipment of the Shared-Use Center “Analytical Center of the Razuvaev Institute of Organometallic Chemistry of the Russian Academy of Sciences” with the support of the grant “Ensuring the development of the material and technical infrastructure of centers for the shared use of scientific equipment” (project unique identifier RF-2296.61321X0017, agreement no. 075-15-2021-670).
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Translated by S. Zatonsky
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Len’shina, N.A., Arsenyev, M.V., Fagin, A.A. et al. Photoreduction and Photoinitiating Ability of 1-Hexadecyl Isatin Derivatives Containing Chemically Different Substituents in the 5-Position. High Energy Chem 56, 315–319 (2022). https://doi.org/10.1134/S0018143922050095
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DOI: https://doi.org/10.1134/S0018143922050095