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Dotsenko VV, Khalatyan KV, Russkikh AA, Varzieva EA, Kramareva DA, Vasilin VK, Aksenov NA, Aksenova IV. Synthesis and Some Properties of 2-Amino-4-aryl-6-hexyl-7-hydroxy-4H-chromene-3-carbonitriles. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222120374] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/11/2023]
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Dotsenko VV, Varzieva EA, Buriy DS, Aksenov NA, Aksenova IV. First Synthesis of 2-Amino-5-hydroxy-4H-chromene-3-carbonitriles from 4-(2-Pyridylazo)resorcinol. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222110081] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022]
Abstract
Abstract
4-(2-Pyridylazo)resorcinol (PAR) sodium salt reacts with aromatic aldehydes and malononitrile in aqueous ethanol to form 2-amino-4-aryl-5-hydroxy-6-(2-pyridylazo)-4H-chromene-3-carbonitriles.
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Dahno PG, Zhilyaev DM, Dotsenko VV, Strelkov VD, Krapivin GD, Aksenov NA, Aksenova IV, Likhovid NG. Oxidation of 2-Cyanothioacrylamides with Sodium Nitrite in Acidic Medium. RUSS J GEN CHEM+ 2022. [DOI: 10.1134/s1070363222090080] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Abstract
(E)-3-Aryl-2-cyanoprop-2-entioamides, prepared by Knoevenagel condensation between aromatic aldehydes and cyanothioacetamide, react with sodium nitrite in acetic acid to form (2E,2′E)-2,2′-(1,2,4-thiadiazole-3,5-diyl)bis[3-arylacrylonitriles]. A possible mechanism and limitations of the reaction are discussed. Molecular docking was carried out in order to search for possible protein targets for the obtained 1,2,4-thiadiazoles. One of the compounds showed a pronounced antidote effect against the herbicide 2,4-D in a laboratory experiment on sunflower seedlings and under field conditions.
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