- Synthesis, structural, theoretical studies and biological activities of 3-(arylamino)-2-phenyl-1H-inden-1-one derivative
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Five derivatives of 2-phenyl-1H-indene-1-one have been prepared and fully characterized. Spectroscopic techniques such as FT-IR, 1H NMR, mass spectrometry, and elemental analysis were used to investigate the chemical structures and physical pro
- El-Sheshtawy, Hamdy S.,Abou Baker, Ahmed M.
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- Thermal and photochemical rearrangements of 3-arylamino-2-phenyl-1H-inden- 1-ones to n-arylphthal-imides
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Upon heating to above their melting temperatures, 3-arylamino-2-phenyl-1H- inden-1-ones and 2,2′-diphenyl-3,3′-bis(arylimino)-[2,2′- biindan]-1,1′-dione undergo a skeletal rearrangement to afford N-arylphthalimides along with benzoic acid in the presence of atmospheric oxygen. The photoreaction of these compounds in acetonitrile also results in the formation of these products. The mechanism of the reactions, including the formation of a peroxyl radical followed by its conversion to a nitrogen-centered radical, is proposed.
- Kawai, Masayuki,Sakanoshita, Eriko,Akita, Motoko,Kobayashi, Keiji
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- Transition-Metal-Free Reverse Reactivity of (2-Alkynyl)-Arylaldimines: Assembly of Functionalized Amino-Indinones
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Transition-metal-free regioselective synthesis of functionalized amino-indenones by the reaction of ortho-alkynylaldehydes with a broad range of primary amines by intramolecular cyclization has been described. The designed reaction proceeds through KOH-mediated Prins-type cyclization and DMSO-promoted oxidation of the cyclopent-2-en-1-one system. The proposed mechanism and role of solvent were well supported by control experiments. For the first time, we have disclosed the reverse reactivity of (2-alkynyl)-arylaldimines in a super basic system.
- Saini, Kapil Mohan,Saunthwal, Rakesh K.,Sushmita,Verma, Akhilesh K.
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p. 1017 - 1021
(2020/01/25)
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- Behaviour of 2-substituted 1,3-indandiones towards aldimines
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Treatment of 2-cyano-1,3-indandione (1) with aldimines gave the expected Mannich bases (2-4), while the arylidenes (7,8) were obtained when 2-ethoxyearbonyl-1,3-indandione (5) was subjected to react with aldimines. On the other hand, treatment of 2-acetyl
- Afsah,Hamama,Etman,Sayed-Ahmed
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