共查询到20条相似文献,搜索用时 9 毫秒
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M. N. Armisheva N. A. Kornienko V. L. Gein M. I. Vakhrin 《Russian Journal of General Chemistry》2011,81(9):1893-1895
The reaction of 5-(4-chlorophenyl)-4-benzoyl-1-(4-hydroxyphenyl)-3-hydroxy-3-pyrrolin-2-one with aromatic amines affords the
corresponding 3-arylamino derivatives, and the reactions of 5-aryl-4-acetyl-1-(4-hydroxyphenyl)-3-hydroxy-3-pyrrolin-2-ones
with p-toluidine yield 5-aryl-4-(1-p-tolylamino)ethylene-1-(4-hydroxyphenyl)pyrrolidin-2,3-diones. 相似文献
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5-Aryl-4-aroyl-3-hydroxy-1-cyanomethyl-3-pyrrolin-2-ones were synthesized by a three-component reaction of methyl aroylpyruvate with a mixture of aromatic aldehyde and 2-aminoacetonitrile sulfate in glacial acetic acid in the presence of anhydrous sodium acetate. 相似文献
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V. L. Gein L. F. Gein V. S. Platonov O. V. Bobrovskaya 《Russian Journal of General Chemistry》2014,84(9):1689-1693
1,5-Diaryl-4-[2-thienoyl(furanoyl)]-3-hydroxy-3-pyrrolin-2-ones reacted with aromatic amines to form arylamino-3-pyrrolin-2-ones. Reactions with butylamine occurred via intermediate salt formation followed by their transformation into 3-butylamino-3-pyrrolin-2-ones at heating. 相似文献
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Russian Journal of General Chemistry - A series of new 1-aminocarbonylmethyl-5-aryl-4-aroyl-3-hydroxy-3-pyrrolin-2-ones has been synthesized through a three-component reaction of aroylpyruvic acid... 相似文献
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Mamedov V. A. Mustakimova L. V. Vdovina S. V. Gubaidullin A. T. Litvinov I. A. 《Russian Chemical Bulletin》2009,58(9):1981-1985
Cyclocondensation of 5-aroyl-4-dichloromethyl-4-hydroxy-6-phenylperhydropyrimidin-2-ones with 85% hydrazine hydrate in boiling
toluene afforded pyrimido[4,5- d]pyridazines. 相似文献
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Gein V. L. Rubtsova D. D. Bobyleva A. A. Ryabova O. V. Novikova V. V. Kasimova N. N. Yankin A. N. 《Russian Journal of General Chemistry》2020,90(7):1222-1228
Russian Journal of General Chemistry - A series of novel 5-(het)aryl-3-hydroxy-1-hydroxyethyl-4-(thienyl-2-carbonyl)-3-pyrrolin-2-ones was synthesized by reacting methyl thienyl-2-carbonylpyruvate... 相似文献
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Russian Journal of General Chemistry - The reaction of methyl aroylpyruvate with a mixture of aromatic aldehyde and glycocol in a dioxane–water mixture (1 : 1) leads to the formation of a new... 相似文献
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Sarah J.P. Yoon-Miller 《Tetrahedron letters》2007,48(5):827-830
A three step, convergent synthesis of 4-aryl-3-pyrrolin-2-ones from a tetramic acid has been developed. The key transformation utilized a Suzuki-Miyaura cross-coupling reaction between a 4-tosyloxy-3-pyrrolin-2-one and an arylboronic acid. This work also provides access to 4-arylpyrrolidin-2-ones, cyclic analogs of γ-aminobutyric acid (GABA). Hydrogenation of 4-(4′-chlorophenyl)-3-pyrrolin-2-one proceeded smoothly to give baclofen lactam. 相似文献
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V. L. Gein N. L. Fedorova E. B. Levandovskaya M. I. Vakhrin 《Russian Journal of Organic Chemistry》2011,47(1):95-99
4-Acetyl-1-alkoxyaryl-5-aryl-3-hydroxy-2,5-dihydro-1H-pyrrol-2-ones reacted with amines to give 1-alkoxyaryl-5-aryl-4-(1-R-aminoethylidene)pyrrolidine-2,3-diones. Reactions of amines with 4-benzoyl-substituted analogs involve nucleophilic attack on the C3 atom in the heteroring to produce the corresponding 3-R-amino-1-alkoxyaryl-5-aryl-4-benzoyl-2,5-dihydro-1H-pyrrol-2-ones. Reactions of the title compounds with hydrazine hydrate, regardless on the substituent on C4, afforded 4-aryl-3-methyl(phenyl)-5-[2(4)-methoxyphenyl]-4,6-dihydropyrrolo[3,4-c]pyrazol-6-ones. 相似文献
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Ivana Sušnik Jasna Vorkapić-Furač Senadin Duraković Stanko Koprivanac Jasna Lasinger 《Monatshefte für Chemie / Chemical Monthly》1992,123(8-9):817-822
Summary The reaction of 3-aroyl-6-aryl-4-hydroxy-2H-pyran-2-ones (Ar=p-tolyl, 1,1-biphenyl-4-yl or thienyl) with aniline and substitutedo-phenylenediamine (R=H, CH3 or Cl) yields a series of new Schiff bases2a–f in 51–72% yield. Bromination of1a gave the 5-bromo derivative1c, while the compounds1a,1b,2b,2e, and2f were converted into 2,6-diaryl-4H-pyran-4-ones3a–c. All products have been fully characterized.
Synthese von Schiff'schen Basen von 3-Aroyl-6-aryl-4-hydroxy-2H-pyran-2-onen
Zusammenfassung Die Reaktion von 3-Aroyl-6-aryl-4-hydroxy-2H-pyran-2-onen (Ar=p-Tolyl, 1,1-Biphenyl-4-yl oder Thienyl) mit Anilin und substituierteno-Phenylendiaminen liefert neue Schiff'sche Basen2a–f/bd in 51–72% Ausbeute. Bromierung von1a gab das 5-Bromderivate1c, während die Verbindungen1a,1b,2b,2e und2f in 2,6-Diaryl-4H-pyran-4-onen3a–c übergeführt wurden. Alle Produkte wurden voll charakterisiert.相似文献
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Russian Journal of General Chemistry - 相似文献
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