85635-62-7Relevant academic research and scientific papers
Synthesis and Structure (Z)-N-Aryl-2-hydroxy-4-oxo-4-phenylbut-2-enamides
Gein,Zamaraeva,Gorgopina,Igidov,Bobrovskaya,Dmitriev
, p. 832 - 835 (2018/06/14)
Reactions of 5-phenyl-2,3-dihydrofuran-2,3-dione with aromatic amines in anhydrous dioxane or methyl benzoylpyruvate with aromatic amines in the presence of sodium acetate in glacial acetic acid afforded (Z)-N-aryl-2-hydroxy-4-oxo-4-phenylbut-2-enamides.
Acylpyruvic acid amides and hydrazides: XII. Reaction of 4-Aryl-2-hydroxy-4-oxo-2-butenic acids arylamides with triphenylphosphoranylideneacetic acid esters
Koz'minykh,Goncharov,Koz'minykh
, p. 1041 - 1047 (2008/02/05)
4-Aryl-2-hydroxy-4-oxo-2-butenic (aroylpyruvic) acid arylamides react with triphenylphosphoranylidenacetic acid esters to form products of Wittig reaction at α-carbonyl group, the 5-aryl-3-arylaminocar-bonyl-5-oxo-3-pentenoic acid esters. Features in stru
Reaction of 5-Aryl-2,3-dihydro-2,3-furandiones with Esters of β-Aminocrotonic and 2-Arylamino-4-oxo-2-butenoic Acids
Koz'minykh,Armaginova,Shavkunova,Igidov,Berezina,Koz'minykh
, p. 224 - 227 (2007/10/03)
Ethyl 3-benzylaminocrotonate combines with 5-aryl-2,3-dihydro-2,3-furandiones as C- and N-nucleophiles by two competitive routes to give 2-aroylmethyl-1-benzyl-4-ethoxycarbonyl-2-hydroxy-5-methyl-2,3-dihydro-3- pyrrolones and benzylamides of aroylpyruvic acids. Methyl 4-aryl-2-arylamino-4-oxo-2-butenoates react with 5-aryl-2,3-dihydro-2,3-furandiones to yield only arylamides of aroylpyruvic acids.
CHEMISTRY OF OXALYL DERIVATIVES OF METHYL KETONES. XLV. EFFECT OF SPECIFICSOLVATION ON THE KINETICS OF THE REACTION OF 5-ARYL-2,3-DIHYDROFURAN-2,3-DIONES WITH AROMATIC AMINES IN DIOXANE
Kozlov, A. P.,Sychev, D. I.,Andreichikov, Yu. S.
, p. 1578 - 1583 (2007/10/02)
The kinetics of the reaction of 5-aryl-2,3-dihydrofuran-2,3-diones with arylamines in dioxane were investigated by a spectrophotometric method.The previously proposed stage mechanism, realized through a nonpolar tetrahedral intermediate product, was confirmed.Specific solvation by the dioxane leads to a marked decrease in the reaction rate on account of hindrance of the cyclic proton transfer in the rate-controlling stage and to an increase in the polarity of the transition stage.Catalysis by a second molecule of the arylamine was detected and was explained by its inclusion in a cyclic transition state.
CHEMISTRY OF OXALYL DERIVATIVES OF METHYL KETONES. XLII. RING OPENING IN 5-ARYL-2,3-DIHYDRO-2,3-FURANDIONES BY THE ACTION OF AROMATIC AMINES IN TOLUENE. EFFECT OF SUBSTITUENTS IN THE NUCLEOPHILIC REAGENTS AND SUBSTRATE ON THE RATE OF THE NONCATALYTIC REAC
Kozlov, A. P.,Sychev, D. I.,Andreichikov, Yu. S.
, p. 1965 - 1972 (2007/10/02)
The kinetics of the reactions of 5-aryl-2,3-dihydro-2,3-furandiones with aromatic amines were investigated by a spectrophotometric method.On the basis of an analysis of the dependence of the reaction rate on the nature of the substituents in the substrate
