85635-61-6Relevant articles and documents
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 (2006)
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. XLIII. BIFUNCTIONAL CATALYSIS BY CARBOXYLIC ACIDS IN THE OPENING OF THE RING OF 5-ARYL-2,3-DIHYDROFURAN-2,3-DIONES BY THE ACTION OF ANILINE AND N-METHYLANILINE. EFFECT OF SUBSTITUENTS IN THE CATALYST AND
Kozlov, A. P.,Sychev, D. I.,Andreichikov, Yu. S.
, p. 167 - 174 (2007/10/02)
The kinetics of the reactions of 5-aryl-2,3-dihydrofuran-2,3-diones with aniline and N-methylaniline in toluene, catalyzed by carboxylic acids, were studied.By analysis of the dependence of the reaction rate on the nature of the substituents in the carbox