Search Results - "Ilavský, Dušan"

1H and13C NMR spectra of 3-substituted 4-quinolones by Zalibera, Ľubomír, Milata, Viktor, Ilavský, Dušan

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1H and 13C NMR spectra of 3-substituted 4-quinolones by Zalibera, Ľubomír, Milata, Viktor, Ilavský, Dušan

“…A series of 14 3‐substituted 4‐oxoquinolones with or without a substituent (methyl, ethyl) in position 1 were prepared. Literature and measured data were used…”
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Gould-Jacobs Reaction of 5- and 6-Amino-2-substituted Benzoxazoles. II. Reaction with 3-Ethoxymethylene-2,4-pentanedione and Ethyl 2-Ethoxymethylene-3-oxobutanoate by Heleyová, Katarína, Ilavský, Dušan, Bobošík, Vladimír, Prónayová, Naďa

“…Nucleophilic reaction of 5-amino- and 6-amino-2-substituted benzoxazoles 1 and 2 with 3-ethoxymethylene-2,4-pentanedione ( 3 ) gave compounds 5 and 6 …”
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Gould-Jacobs Reaction of 5- and 6-Amino-2-substitutedBenzoxazoles. III. Reaction with 3-Ethoxy-2-cyanopropenonitrile and Ethyl 3-Ethoxy-2-cyanopropenoate by Heleyová, Katarína, Ilavský, Dušan

“…Nucleophilic reaction of 5-amino- ( 1 ) and 6-amino-2-substituted benzoxazoles ( 2 ) with 3-ethoxy-2-cyanopropenonitrile ( 3 ) afforded the respective…”
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Syntheses and Spectral Properties of Unsymmetrically 3,5-Disubstituted 2,6-Dimethyl-1,4-dihydropyridines by Ilavský, Dušan, Milata, Viktor

“…Unsymmetrically 3,5-disubstituted 4-(5-X-2-furyl)-2,6-dimethyl-1,4-dihydropyridines (where X = H, Br, NO 2 ) have been synthesized and characterized by…”
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Gould-Jacobs Reaction of 5- and 6-Amino-2-substituted Benzoxazoles. I. Reaction with Diethyl Ethoxymethylenemalonate by Ilavský, Dušan, Heleyová, Katarína, Nádaská, Jana, Bobošík, Vladimír

“…Reaction of 2-substituted 5- and 6-aminobenzoxazoles 1 and 2 with diethyl ethoxymethylenemalonate afforded the corresponding diethyl 3- N -(5- and…”
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Electronic spectra of 2- and 4-substituted 3,5-dicyano-6-methylpyridines by Ilavský, Dušan, Kuthan, Josef

“…The PPP method has been used for calculation of theoretical spectra of the compounds III-X and IIIa-Xa , and the results obtained have been confronted with…”
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Synthesis and Properties of Substituted 1-(2-Benzothiazolyl)-2-pyridones by Štetinová, Jarmila, Kada, Rudolf, Leško, Ján, Zalibera, Lubomír, Ilavský, Dušan, Bartovič, Alexander

“…The studied 1-(2-benzothiazolyl)-2-pyridones Va-Vf were prepared from N -(2-benzothiazolyl)cyanoacetamide (II) which on reaction with 4-substituted…”
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Synthesis of 3-(5-Alkyl-4-acetyl(ethoxycarbonyl))-2-propenoates from Derivatives of 3-Phenoxy-2-furylmethylene by Marchalín, Štefan, Mlynárik, Vladimír, Staňová, Anna, Ilavský, Dušan

“…3-(2-Furyl)propenoates IV - VIII were obtained by treatment of 5-phenoxy-2-furylmethylene derivatives I - III with alcoholic hydrogen chloride in one step. The…”
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Synthesis of Nitro-Substituted 4-Oxo-4H-pyrimido[2,1-b]benzothiazole-3-carboxylic Acids and Their Spectral Characteristics by Bartovič, Alexander, Ilavský, Dušan, Šimo, Ondrej, Zalibera, Lubomír, Belicová, Anna, Seman, Milan

“…The Gould-Jacobs reaction of all position isomeric 2-aminonitrobenzothiazoles II with diethyl ethoxy- methylenemalonate has been studied. The structure of…”
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Thermal cyclocondensations of 3-N(4- and 5-benzimidazolyl and benztriazolyl)amino derivatives of 2-propenoic acid by MILATA, V, ILAVSKY, D

“…The cyclization of 3-N(4- and 5-benzimidazolyl and benztriazolyl)amino-2-cyano- and 2-ethoxycarbonyl-2-propenoate esters Ia, b-IVa, b under the conditions of…”
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Synthesis, Reactions and Spectral Properties of Ethyl Esters of 2-Cyano-3-(5-X-2-furyl)acrylic Acid by Kada, Rudolf, Ilavský, Dušan, Štetinová, Jarmila, Zalibera, Lubomír, Paďour, Jiří

“…The reaction of 5-X-2-furaldehydes (X = C 6 H 5 , COOCH 3 , COOC 2 H 5 , C 6 H 5 O, C 6 H 5 S, CH 3 S, 4-Cl-C 6 H 4 S, CH 3 SO 2 , C 6 H 5 SO 2 , 4-Cl-C 6 H 4…”
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Thermal cyclocondensation of ethyl (1-methyl-5- and 6-benzimidazolyl/benzotriazolyl)-aminomethylenepropanedioates by MILATA, V, ILAVSKY, D, GOLJER, I, ZALIBERA, L

“…Thermal cyclocondensation of starting ethyl (1-methyl-5- and 6-benzimidazolyl/benzotriazolyl)aminomethylenepropanedioates ( Ia - Ie ) in aprotic medium gives…”
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Synthesis of New 2-Substituted 4-(2-Furyl)-4H-pyrans by Ilavský, Dušan, Bruncko, Milan, Marchalín, Štefan, Zalibera, Lubomír

“…Substituted 2-amino-3-cyano-4 H -pyrans represent important precursors in syntheses of condensed heterocycles containing a 4 H -pyran nucleus. In the context…”
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Synthesis and reactions of 5-acetyl-2-amino-3-cyano-4-(5-X-furyl)-6-methyl-4H-pyrans by MARCHALIN, S, ILAVSKY, D, KOVAC, J, BRUNCKO, M

“…Substituted 2-amino-4-(5-X-2-furyl)-4 H -pyrans IIIa-IIIe have been prepared by a cyclization reaction of 5-X-2-furylmethylenepropanedinitriles IIa-IIe with…”
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Synthesis and cyclization of some 5-aminobenzimidazole and 5-aminobenzotriazole derivatives by BOBOSIK, V, MILATA, V, ILAVSKY, D, GOLJER, I

“…Alkoxymethylene derivatives I of 2,4-pentanedione, 3-oxobutanenitrile, and methyl and ethyl 3-oxobutanoates with substituted 1-phenyl-5-aminobenzimidazoles and…”
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Condensation Reactions of 1,2,3,4-Tetrahydro-6-methyl-2,4-dioxo-5-pyrimidinecarbaldehyde by Bobáľ, Pavel, Gažo, Roman, Kada, Rudolf, Ilavský, Dušan, Prónayová, Naďa, Zalibera, Lubomír

“…Condensation reactions of 1,2,3,4-tetrahydro-6-methyl-2,4-dioxo-5-pyrimidinecarbaldehyde with nine acid derivatives containing an active methylene group are…”
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4-N-Benzazolylamino derivatives of 3-Y-3-buten-2-one by MILATA, V, ILAVSKY, D, GOLJER, I, LESKO, J

“…Ethoxymethylene derivatives of 2,4-pentanedione ( Ia ), 3-oxobutanenitrile ( Ib ), methyl ( Ic ) or ethyl ( Id ) 3-oxobutanoate give with 4- or…”
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Alkylated benzimidazole and benzotriazole derivatives of 3-amino-2-propenoic acid by MILATA, V, ILAVSKY, D, GOLJER, I

“…The alkylation of unsubstituted 3-(5-benzimidazolyl- and 5-benzotriazolyl)amino derivatives of 2-propenoic acid ( I ) results in the replacement of hydrogen…”
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Synthesis and spectral properties of pyrrolo[3',4':5,6]-4H-pyrano[2,3-d]pyrimidine derivatives by MARCHALIN, S, PAVLIKOVA, F, ILAVSKY, D

“…The starting 2-amino-5-ethoxycarbonyl-6-chloromethyl-4-(2-furyl)-3-cyano-4 H -pyran ( I ) afforded on condensation with triethoxymethane…”
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