Collection of Czechoslovak Chemical Communications - digital archive 

Individual author index pages

• Jaromír Kaválek
• Ahmad Ashfaq
• Vojeslav Štěrba

Other CCCC articles of these authors

• Jiří Hanusek*, Miloš Sedlák, Roman Keder and Vojeslav Štěrba
  Kinetics and Mechanism of Desulfurization Reaction of 1-Methyl-2-phenylquinazoline-4(1H)-thiones
  2004, Vol. 69, Issue 12, pp. 2212–2222 [Abstract]
• Jaromír Mindl*, Oldřich Hrabík, Vojeslav Štěrba and Jaromír Kaválek
  Cyclization of Substituted Phenyl N-(2-Hydroxybenzyl)carbamates in Aprotic Solvents. Synthesis of 4H-1,3-Benzoxazin-2(3H)-ones
  2000, Vol. 65, Issue 8, pp. 1262–1272 [Abstract]
• Jaromír Mindl*, Jaromír Kaválek, Helena Straková and Vojeslav Štěrba
  Kinetics of Base-Catalysed Hydrolysis and Cyclisation of Substituted Acetamide and Benzamide O-(Phenoxycarbonyl)oximes
  1999, Vol. 64, Issue 10, pp. 1641–1653 [Abstract]
• Miloš Sedlák, Jiří Hanusek, Radim Bína, Jaromír Kaválek and Vladimír Macháček*
  Kinetics and Mechanism of the Formation and Decomposition of Imidazolin-4-ones from 2-(N-Benzoylamino)alkanamides in Aqueous Medium
  1999, Vol. 64, Issue 10, pp. 1629–1640 [Abstract]
• Libor Dušek*, Jaromír Kaválek and Vojeslav Štěrba
  Kinetics of Methanolysis of Substituted Benzamide O-(Phenoxycarbonyl)- and O-(Alkoxycarbonyl)oximes Catalyzed by Sodium Methanolate
  1999, Vol. 64, Issue 2, pp. 265–287 [Abstract]
• Miloš Sedlák, Jaromír Kaválek, Petr Mitaš and Vladimír Macháček
  Kinetics and Mechanism of Cyclization of Substituted 2-(Benzoylamino)alkanamides in Strongly Basic Medium
  1998, Vol. 63, Issue 3, pp. 394–406 [Abstract]
• Petr Mitaš, Miloš Sedlák and Jaromír Kaválek
  Substituent Effect on Acidity of Substituted 2-(4-Nitrobenzoylamino)alkanamides in Methanol-Dimethyl Sulfoxide Mixtures
  1998, Vol. 63, Issue 1, pp. 85–93 [Abstract]
• Petr Mitaš, Jaromír Kaválek and Oldřich Pytela
  Dissociation of Amides in Strongly Basic Medium of Sodium Methoxide in Dimethyl Sulfoxide-Methanol Mixtures
  1997, Vol. 62, Issue 10, pp. 1562–1576 [Abstract]
• Jaroslava Horáčková and Vojeslav Štěrba
  Kinetics of Coupling of 4-Methoxybenzenediazonium Ion with 2,6-Dihydroxypyridine
  1996, Vol. 61, Issue 6, pp. 951–956 [Abstract]
• Miloš Sedlák, Aleš Halama, Jaromír Kaválek, Vladimír Macháček, Petr Mitaš and Vojeslav Štěrba
  Preparation and NMR Spectra of Substituted 2-(4-Nitrophenyl)imidazolinones
  1996, Vol. 61, Issue 6, pp. 910–920 [Abstract]
• Vladimír Macháček, Alexandr Čegan, Aleš Halama, Olga Rožňavská and Vojeslav Štěrba
  Reactions of 4-Amino-3-penten-2-one and Its NSubstituted Derivatives with Diazonium Ions
  1995, Vol. 60, Issue 8, pp. 1367–1379 [Abstract]
• Miloš Sedlák, Aleš Halama, Jaromír Kaválek, Vladimír Macháček and Vojeslav Štěrba
  Preparation, ¹H and ¹³C NMR Spectra of Substituted 2-Benzoylaminocarboxamides
  1995, Vol. 60, Issue 1, pp. 150–160 [Abstract]
• Vladimír Macháček, Jana Manová, Miloš Sedlák and Vojeslav Štěrba
  Kinetics and Mechanism of Reaction of 2,4-Dinitrobenzaldehyde with Hydroxide Ion
  1994, Vol. 59, Issue 10, pp. 2262–2268 [Abstract]
• Jaromír Kaválek, Vladimír Macháček and Vojeslav Štěrba
  Coupling Kinetics of 4-Sulfobenzenediazonium Ion with 2,4-Thiazolidinedione, Its 3-Methyl Derivative and 3-Methyl-5-isoxazolone
  1994, Vol. 59, Issue 9, pp. 2022–2028 [Abstract]
• Jaroslava Horáčková and Vojeslav Štěrba
  Kinetics of Substitution of 4-Methoxyphenylazo Groups of 2,6-Dioxo-5(3)-(4-methoxyphenylazo)-3(5)-(4-methoxyphenylhydrazono)-1,2,3,6-tetrahydropyridine-4-carboxylic Acid by Reaction with 4-Nitrobenzenediazonium Cation
  1994, Vol. 59, Issue 7, pp. 1665–1672 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Miloš Sedlák and Vojeslav Štěrba
  Study of Cyclization of 1-Benzoyl-3-methyl-3-(2-methoxycarbonylphenyl)thiourea to 1-Methyl-2-thioxo-4-quinazolone
  1993, Vol. 58, Issue 5, pp. 1122–1132 [Abstract]
• Jaroslava Horáčková and Vojeslav Štěrba
  Coupling Kinetics of Benzenediazonium Ions with 2,6-Dioxo-3-(p-substituted phenylhydrazono)-1,2,3,6-tetrahydropyridine-4-carboxylic Acid
  1992, Vol. 57, Issue 9, pp. 1915–1927 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Miloš Sedlák and Vojeslav Štěrba
  Kinetics and Mechanism of Cyclization of N-(2-Methoxycarbonylphenyl)-N-methylsulfonamide to 1-Methyl-(1H)-2,1,3-benzothiadiazine-4(3H)-one-2,2-dioxide
  1992, Vol. 57, Issue 6, pp. 1282–1290 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Miloš Sedlák and Vojeslav Štěrba
  Kinetics and mechanism of cyclization of N-(2-methoxycarbonylphenyl)-N’-methylsulphonamide to 3-methyl-(1H)-2,1,3-benzothiadiazin-4(3H)-one 2,2-dioxide
  1991, Vol. 56, Issue 8, pp. 1701–1710 [Abstract]
• Jaroslava Horáčková, Jaromír Kaválek, Jiří Kulič and Vojeslav Štěrba
  Azo coupling kinetics of benzenediazonium ions with citrazinic acid
  1991, Vol. 56, Issue 2, pp. 386–397 [Abstract]
• Oldřich Pytela, Taťjana Nevěčná and Jaromír Kaválek
  Reactivity of proton and general acid with 1,3-bis-(4-methylphenyl)triazene in aqueous methanol
  1990, Vol. 55, Issue 11, pp. 2701–2706 [Abstract]
• Jiří Klicnar, Jaromír Mindl and Vojeslav Štěrba
  Kinetics of reaction of 1,2-diaminobenzene with phenylglyoxal
  1990, Vol. 55, Issue 5, pp. 1216–1222 [Abstract]
• Jaromír Kaválek, Ulrika Králíková, Vladimír Macháček, Miloš Sedlák and Vojeslav Štěrba
  Kinetics and mechanism of solvolysis of N-aryl sulfuric diamides
  1990, Vol. 55, Issue 1, pp. 202–222 [Abstract]
• Taťjana Nevěčná, Oldřich Pytela, Miroslav Ludwig and Jaromír Kaválek
  Solvent effects on kinetics and mechanism of acid-catalyzed decomposition of 1,3-bis(4-methylphenyl)triazene I. Reactions in alcohols
  1990, Vol. 55, Issue 1, pp. 147–155 [Abstract]
• Vítězslav Zima, Oldřich Pytela, Jaromír Kaválek and Miroslav Večeřa
  Reactivity of nucleophiles in dimethyl sulfoxide and its comparison with nucleophilic reactivity in protic medium
  1989, Vol. 54, Issue 10, pp. 2715–2720 [Abstract]
• Jaromír Kaválek, Lubomír Kacetl and Marcela Kaválková
  Kinetics of methanolysis of 1-(2-halogeno and 2,6-dihalogenobenzoyl)-3-(4-chlorophenyl)ureas
  1989, Vol. 54, Issue 5, pp. 1363–1369 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Gabriela Svobodová and Vojeslav Štěrba
  Kinetics and mechanism of reversible, base-catalyzed ring closure of 3-(methoxycarbonyl)propionanilide and O-(methoxycarbonylmethyl)-N-phenylcarbamate
  1989, Vol. 54, Issue 4, pp. 1005–1011 [Abstract]
• Vladimír Macháček, Alexandr Čegan, Miloš Sedlák and Vojeslav Štěrba
  Formation of spiro adduct from N-methyl-N-(2,4,6-trinitrophenyl)glycine anion
  1989, Vol. 54, Issue 2, pp. 440–445 [Abstract]
• Vladimír Macháček, Miloslav Sebránek and Vojeslav Štěrba
  Reaction of N-methyl-N-(2,4-dinitrophenyl)glycine methylamide with methoxide
  1989, Vol. 54, Issue 2, pp. 430–439 [Abstract]
• Jiří Klicnar, Jaromír Mindl, Ivana Obořilová, Jaroslav Petříček and Vojeslav Štěrba
  Reaction kinetics of 1,2-diaminobenzene with ethyl 2-oxopropanoate and 2,3-butanedione
  1988, Vol. 53, Issue 12, pp. 3154–3163 [Abstract]
• Vladimír Macháček, Vojeslav Štěrba, Ivan Kolb and Antonín Lyčka
  Reactions of methyl esters of N-(2,4-dinitrophenyl)glycine and N-methyl-N-(2,4-dinitrophenyl)glycine with sodium methoxide
  1988, Vol. 53, Issue 5, pp. 1044–1052 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Vojeslav Štěrba and Antonín Lyčka
  Formation of N-methyl-2-nitroso-4,6-dinitroaniline from methyl ester of N-methyl-N-(2,4,6-trinitrophenyl)glycine
  1988, Vol. 53, Issue 5, pp. 1033–1043 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Makky M. M. Hassanien and Vojeslav Štěrba
  Base-catalyzed formation of spiro adduct from N-methyl-N-(2,4,6-trinitrophenyl)glycinamide, the smiles rearrangement of the amide in methanol
  1988, Vol. 53, Issue 3, pp. 601–618 [Abstract]
• Jaromír Kaválek, Josef Jirman, Vladimír Macháček and Vojeslav Štěrba
  The methanolysis kinetics and dissociation constants of 1-(subst. benzoyl)-3-phenylthioureas
  1988, Vol. 53, Issue 3, pp. 593–600 [Abstract]
• Vladimír Macháček, Makky M. M. Hassanien and Vojeslav Štěrba
  Kinetics and mechanism of spiro adduct formation from and smiles rearrangement of N-methyl-N-(2,4,6-trinitrophenyl)aminoacetanilide. Base-catalyzed transformation of N-(2,4,6-trinitrophenylamino)acetanilide into 2-nitroso-4,6-dinitroaniline
  1987, Vol. 52, Issue 9, pp. 2225–2240 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Gabriela Svobodová and Vojeslav Štěrba
  Kinetics of acid-catalyzed cyclization of substituted hydantoinamides to substituted hydantoins
  1987, Vol. 52, Issue 8, pp. 1999–2004 [Abstract]
• Jaromír Kaválek, Josef Jirman, Vladimír Macháček and Vojeslav Štěrba
  An anomalous effect of methyl group on acidity of acylthioureas
  1987, Vol. 52, Issue 8, pp. 1992–1998 [Abstract]
• Jaromír Kaválek, Ludmila Hejtmánková and Vojeslav Štěrba
  Kinetics and mechanism of solvolysis of substituted phenyl N-phenylbenzimidoesters
  1987, Vol. 52, Issue 5, pp. 1285–1297 [Abstract]
• Jaromír Mindl and Vojeslav Štěrba
  Mechanism of base-catalyzed cyclization of ethyl N-(substituted aminocarbonyl)glycinates
  1987, Vol. 52, Issue 1, pp. 156–161 [Abstract]
• Vladimír Macháček, Gabriela Svobodová and Vojeslav Štěrba
  Kinetics and mechanism of base-catalyzed cyclization of substituted amides and nitriles of hydantoic acid
  1987, Vol. 52, Issue 1, pp. 140–155 [Abstract]
• Vladimír Macháček, Vojeslav Štěrba and Antonín Lyčka
  Mechanism of the reaction of 1-methoxy- and 1-chloro-2,4,6-trinitrobenzene with dimethyl malonate anion
  1987, Vol. 52, Issue 1, pp. 132–139 [Abstract]
• Jaromír Kaválek, Josef Jirman and Vojeslav Štěrba
  Reactions of 1,3-diacylthioureas with methoxide ion and with amines
  1987, Vol. 52, Issue 1, pp. 120–131 [Abstract]
• Vladimír Macháček, Makky M. M. Hassanien, Vojeslav Štěrba and Antonín Lyčka
  Formation of the Meisenheimer spiro adduct of N-(2,4,6-trinitrophenyl)alanine methylamide and its rearrangement to 2-amino-N-methyl-N-(2,4,6-trinitrophenyl)propanamide
  1986, Vol. 51, Issue 9, pp. 1972–1985 [Abstract]
• Jaromír Kaválek, Josef Panchartek, Tomáš Potěšil and Vojeslav Štěrba
  Kinetics of the reaction of guanyl-O-methylisourea hydrochloride with dimethylformamide dimethylacetal
  1986, Vol. 51, Issue 9, pp. 1964–1971 [Abstract]
• Jaromír Kaválek, Josef Panchartek, Tomáš Potěšil and Vojeslav Štěrba
  Solvolysis kinetics of ethyl 3-ethoxy-3-iminopropanoate
  1986, Vol. 51, Issue 3, pp. 677–683 [Abstract]
• Jaromír Kaválek, Vladimír Macháček, Gabriela Svobodová and Vojeslav Štěrba
  Base catalyzed cyclization of substituted esters of hydantoic and thiohydantoic acids
  1986, Vol. 51, Issue 2, pp. 375–390 [Abstract]
• Jaromír Kaválek, Josef Jirman and Vojeslav Štěrba
  Kinetics and mechanism of rearrangement and methanolysis of acylphenylthioureas
  1985, Vol. 50, Issue 3, pp. 766–778 [Abstract]
• Vladimír Macháček, Josef Kořínek, Daniela Kreuzigová and Vojeslav Štěrba
  Kinetics of reactions of 1,2,4-triazole-3-diazonium ions with phenol and with hydroxyl ion
  1985, Vol. 50, Issue 3, pp. 658–674 [Abstract]
• Jaromír Kaválek, Said El Bahaie and Vojeslav Štěrba
  Kinetics and mechanism of methanolysis of benzoyl derivatives of substituted phenylureas and phenylthioureas
  1984, Vol. 49, Issue 9, pp. 2103–2110 [Abstract]
• Jaromír Mindl, Vojeslav Štěrba, Vladimír Kadeřábek, Jr. and Jiří Klicnar
  Kinetics and mechanism of hydrolysis of benzhydryl N-arylthiocarbamates and study of their IR spectra
  1984, Vol. 49, Issue 7, pp. 1577–1591 [Abstract]
• Antonín Lyčka and Jaromír Kaválek
  ¹³C, ¹⁵N, and ¹⁹F NMR spectra of 4-fluoro-(3´ or 4´-substituted) azobenzenes
  1984, Vol. 49, Issue 1, pp. 58–64 [Abstract]
• Jaromír Kaválek, Vladimír Macháček and Vojeslav Štěrba
  Reactions of ethyl 2-alkyl-3-oxobutanoate with thiourea and methylthiourea
  1983, Vol. 48, Issue 7, pp. 1872–1877 [Abstract]
• Vladimír Macháček, Jaroslav Andrle and Vojeslav Štěrba
  Kinetics of reaction of 1-chloro-2,4,6-trinitrobenzene with enolate ions of 2,4-pentanedione and methyl 3-oxobutanoate
  1983, Vol. 48, Issue 6, pp. 1608–1617 [Abstract]
• Jaromír Kaválek, Vojeslav Štěrba and Said El Bahaie
  Dissociation constants of m- and p-substituted phenylthioureas and ureas in water and in methanol
  1983, Vol. 48, Issue 5, pp. 1430–1434 [Abstract]
• Jaromír Mindl and Vojeslav Štěrba
  Kinetics and mechanism of hydrolysis of aryl N-methoxycarbamates and their derivatives
  1983, Vol. 48, Issue 3, pp. 900–905 [Abstract]
• Jaromír Kaválek, Tomáš Potěšil and Vojeslav Štěrba
  Cyclization kinetics and mechanism of N-benzoyl-N'-(1,2-dimethyl-3-oxo-1-butenyl)thiourea
  1983, Vol. 48, Issue 2, pp. 578–585 [Abstract]
• Jaromír Kaválek, Jaroslav Novák and Vojeslav Štěrba
  Kinetics of hydrolysis and rearrangements of S-acylthiouronium salts
  1982, Vol. 47, Issue 10, pp. 2702–2710 [Abstract]
• Jaromír Kaválek, Jiří Hruška and Vojeslav Štěrba
  Kinetics of cyclization of 1-phenyl-3-(1,2-dimethyl-3-oxo-1-butenyl)urea and ethyl 2-methyl-3-N-(N'-phenylureido)-2-butenoate
  1982, Vol. 47, Issue 2, pp. 518–522 [Abstract]
• Jaromír Kaválek, Pavel Fiedler, Zlata Papoušková and Otto Exner
  The confirmation of trisubstituted ureas and thioureas in solution
  1982, Vol. 47, Issue 1, pp. 35–44 [Abstract]
• Vladimír Macháček, Vojeslav Štěrba and Helena Zahradníčková
  Solvolysis kinetics and mechanism of 3-methyl-1,3-thiazolidine-2,4-dione
  1981, Vol. 46, Issue 12, pp. 3097–3103 [Abstract]
• Jaromír Toman, Vojeslav Štěrba and Jiří Klicnar
  Ketimine-enamine tautomerism of 2-ethoxycarbonylmethylene-4-methyl-3-oxo-1,2,3,4-tetrahydroquinoxaline: A kinetic study
  1981, Vol. 46, Issue 9, pp. 2104–2109 [Abstract]
• Vladimír Macháček, Said El Bahaie and Vojeslav Štěrba
  Study of cyclization of 2-acetyl-3-methylamino-N-benzoyl-2-butenethioamide
  1981, Vol. 46, Issue 1, pp. 256–261 [Abstract]
• Jaromír Kaválek, Milan Kotyk, Said El Bahaie and Vojeslav Štěrba
  Reactions of N-benzoyl isothiocyanate with anthranilic acid and methyl anthranilate
  1981, Vol. 46, Issue 1, pp. 246–255 [Abstract]
• Jaromír Kaválek, Said El-Bahaie, Vladimír Macháček and Vojeslav Štěrba
  Study of reaction of thiourea with ethyl 3-oxobutanoate
  1980, Vol. 45, Issue 3, pp. 732–739 [Abstract]
• Jaromír Kaválek, Said El-Bahaie and Vojeslav Štěrba
  Reactions of thiourea with chloro- and bromoacetic acids
  1980, Vol. 45, Issue 1, pp. 263–268 [Abstract]
• Jaromír Kaválek, Karel Janák and Vojeslav Štěrba
  Kinetics of reaction of 5-phenyl-1,3,4-thiadiazol-2-diazonium ion with water
  1979, Vol. 44, Issue 10, pp. 3102–3110 [Abstract]
• Vladimír Macháček, Sylvie Marečková and Vojeslav Štěrba
  Study of reaction of substituted nitrophenyl acetates and benzoates with nucleophiles
  1979, Vol. 44, Issue 6, pp. 1779–1789 [Abstract]
• Vladimír Macháček, Said A. El-bahai and Vojeslav Štěrba
  Kinetics of cyclization of S-ethoxycarbonylmethylisothiouronium chloride to 2-imino-4-thiazolidone
  1979, Vol. 44, Issue 3, pp. 912–917 [Abstract]
• Jaromír Kaválek, Said El-Bahei and Vojeslav Štěrba
  Hydrolysis kinetics of 4-amino-3-pentene-2-one and its N-substituted derivatives
  1978, Vol. 43, Issue 10, pp. 2732–2739 [Abstract]
• Jaromír Kaválek, Miroslav Pastrnek and Vojeslav Štěrba
  Reactions of 2,4,6-trinitrochlorobenzene with dimethyl malonate anion in methanol and methanol-dimethyl sulphoxide mixture
  1978, Vol. 43, Issue 5, pp. 1401–1409 [Abstract]
• Ahmad Ashfaq, V. Macháček and V. Štěrba
  Kinetics of reaction of 1-substituted 3,5-dinitrobenzenes with cyclohexanone
  1975, Vol. 40, Issue 6, pp. 1910–1918 [Abstract]