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101

Molecular and crystal structures and chemical properties of 2,6-dim ethyl-4-phenyl-3,5-diethoxycarbonyl-1, 4-dihydropyridine

A. F. Mishnev, A. E. Shvets, Ya. Ya. Bleidelis, G. Ya. Dubur, A. É. Sausin', V. K. Lusis

Journal:

Chemistry of Heterocyclic Compounds

Year:

1977

Language:

english

File:

PDF, 439 KB

english, 1977

102

Acid hydrolysis of N-methyl derivatives of 4-phenyl-5-oxo-4,5-dehydroindeno[1,2-b]pyridine

V. K. Lusis, D. Kh. Mutsenietse, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1986

Language:

english

File:

PDF, 359 KB

english, 1986

103

Synthesis of monosubstituted amides of 2,6-dimethyl-1,4-dihydropyridine-3,5-dicarboxylic acid

G. Ya. Dubur, Z. Ya. Ogle, Ya. R. Uldrikis

Journal:

Chemistry of Heterocyclic Compounds

Year:

1974

Language:

english

File:

PDF, 179 KB

english, 1974

104

Voltamperometry of 1,4-dihydropyridine derivatives

Ya. P. Stradyn', G. Ya. Dubur, Yu. I. Beilis, Ya. R. Uldrikis, A. É. Sausin', B. S. Chekavichus

Journal:

Chemistry of Heterocyclic Compounds

Year:

1975

Language:

english

File:

PDF, 361 KB

english, 1975

105

Reaction of 2-aroyl-1-cyclohexanones and their 6-amino derivatives with hydrazines

Ya. Ya. Ozol, É. É. Liepin'sh, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1975

Language:

english

File:

PDF, 254 KB

english, 1975

106

Voltamperometry of 1,4-dihydropyridine derivatives

Ya. P. Stradyn', Yu. I. Beilis, Ya. R. Uldrikis, G. Ya. Dubur, A. É. Sausin', B. S. Chekavichus

Journal:

Chemistry of Heterocyclic Compounds

Year:

1975

Language:

english

File:

PDF, 417 KB

english, 1975

107

Reaction of dimedone with aldehydes and β-aminovinyl carbonyl compounds

E. E. Grinshtein, E. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1967

Language:

english

File:

PDF, 245 KB

english, 1967

108

Synthesis of 8-benzylguanine

G. D. Tirzit, A. K. Pengerote, A. A. Ziderman, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1967

Language:

english

File:

PDF, 181 KB

english, 1967

109

Reaction of dibepin with amino acids on chromatographic paper

B. S. Chekavichus, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 85 KB

english, 1972

110

Acid dissociation constants of some nitrogen-containing multinuclear systems

E. I. Stankevich, Yu. Yu. Popelis, E. E. Grinshtein, A. Ya. Ozola, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1970

Language:

english

File:

PDF, 174 KB

english, 1970

111

Synthesis of new pyrido[2,3-d]pyrimidine derivatives

É. É. Grinshtein, É. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 289 KB

english, 1972

112

The oxidation of 1,4-dihydropyridines

G. Ya. Dubur, Ya. R. Uldrikis

Journal:

Chemistry of Heterocyclic Compounds

Year:

1970

Language:

english

File:

PDF, 326 KB

english, 1970

113

Formation of furo- and difuro-1,4-dihydropyridines in the bromination 0f 2,6-dimethyl-3,5-dimethoxycarbonyl-4-(o-nitrophenyl)-1,4-dihydropyridine

I. P. Skrastin'sh, V. V. Kastron, G. Ya. Dubur, I. B. Mazheika, V. P. Kadysh

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 405 KB

english, 1987

114

Nitration of 3,5-dicarbonyl derivatives of 4-phenyl-1,4-dihydropyridine

G. D. Tirzit, I. P. Skrastin'sh, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 152 KB

english, 1987

115

Acid recyclization of 1,4-dihydropyridines

V. K. Lusis, D. Kh. Mutsenietse, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 64 KB

english, 1987

116

Reduction and alkaline hydrolysis of 5-oxoindeno[1,2-b]pyridinium salts

D. Kh. Mutsenietse, A. Z. Zandersons, V. K. Lusis, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 335 KB

english, 1987

117

Octahydropyrrolo[4,3,2-m,n]acridine derivatives. I. Synthesis and molecular structure of derivatives of 2,3,4,5,7,8,9,10-octahydropyrrolo[4,3,2-m,n]acridin-10-one, a new heterocyclic system

é. A. Bisenieks, M. F. Bundule, Ya. R. Uldrikis, G. Ya. Dubur, A. F. Mishnev, Ya. Ya. Bleidelis

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 404 KB

english, 1987

118

Preparation and properties of piperidine salts of 6-hydroxy-4,6-diaryl-5-ethoxycarbonyl-3-cyanopiperidine-2-thiones

A. A. Krauze, é. é. Liepin'sh, Yu. é. Pelcher, Z. A. Kalme, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 427 KB

english, 1987

119

Preparation of 3,5-diethoxycarbonyl-2,6-dimethyl-1,4-dihydro-isonicotinic acid and 3,5-diacetyl-2,6-dimethyl-1,4-dihydroisoni-cotinic acid and their salts

G. Ya. Dubur, Ya. R. Uldrikis

Journal:

Chemistry of Heterocyclic Compounds

Year:

1969

Language:

english

File:

PDF, 202 KB

english, 1969

120

2,4-Dihydroxy-5,6-dihydropyrimidine derivatives

D. Ya. Sniker, É. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 412 KB

english, 1972

121

Reactions of 1-methyl-derivatives of 2-oxo-1,2,3,4-tetrahydropyrimidine with phosphorus pentachloride and phosphorus oxychloride

E. L. Khanina, é. é. Liepin'sh, D. Kh. Mutsenietse, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1987

Language:

english

File:

PDF, 305 KB

english, 1987

122

Synthesis and properties of derivatives of 1,4-dihydropyrimidine-5-carboxylic acid

E. L. Khanina, D. Kh. Mutsenietse, V. P. Kadysh, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1986

Language:

english

File:

PDF, 434 KB

english, 1986

123

Dibepin-2: A new color reagent for primary aliphatic amines

G. Ya. Dubur, G. Ya. Vanag

Journal:

Chemistry of Heterocyclic Compounds

Year:

1968

Language:

english

File:

PDF, 169 KB

english, 1968

124

Acetylation of esters of DL-dihydroorotic acid

D. Ya. Sniker, E. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1970

Language:

english

File:

PDF, 75 KB

english, 1970

125

Volt-amperometry of 1,4-dihydropyridine derivatives

Ya. P. Stradyn', G. Ya. Dubur, Yu. I. Beilis, Ya. R. Uldrikis, A. F. Korotkova

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 314 KB

english, 1972

126

1,4-Dihydropyridines as inhibitors of free-radical reactions

G. D. Tirzit, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 85 KB

english, 1972

127

Derivatives of 2,6-dihydroxy-4,5-dihydropyrimidines

D. Ya. Sniker, E. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1970

Language:

english

File:

PDF, 166 KB

english, 1970

128

2,6-Dihydroxy-4,5-dihydropyrimidine derivatives

D. Ya. Sniker, É. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1972

Language:

english

File:

PDF, 301 KB

english, 1972

129

Oxidation of 1,4-dihydropyridines

Ya. R. Uldrikis, A. O. Kumerova, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1973

Language:

english

File:

PDF, 260 KB

english, 1973

130

Derivatives of 2, 6-dihydroxy-4, 5-dihydropyrimidines

D. Ya. Sniker, É. I. Stankevich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1970

Language:

english

File:

PDF, 205 KB

english, 1970

131

pH/Rfdiagrams of nucleotide bases

G. D. Tirzit, G. Ya. Dubur, F. M. Abolinya

Journal:

Chemistry of Heterocyclic Compounds

Year:

1968

Language:

english

File:

PDF, 254 KB

english, 1968

132

Autoxidative transformations of 2-substituted 3-alkyl-4-hydroxy-1-oxo-1, 2-dihydroisoquinolines

Ya. Ya. Ozol, É. É. Liepin'sh, I. B. Mazheika, B. A. Vigante, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1978

Language:

english

File:

PDF, 496 KB

english, 1978

133

Conformation of 1,2,3,4-tetrahydro-2-pyrimidinones

É. É. Liepin'sh, E. L. Khanina, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1981

Language:

english

File:

PDF, 146 KB

english, 1981

134

Bromination of δ-keto amides

Z. A. Bomika, Yu. É. Pelcher, A. A. Krauze, Yu. Sh. Gol'dberg, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1981

Language:

english

File:

PDF, 486 KB

english, 1981

135

Synthesis of 3-oxoisothiazolo[5,4-b] pyridines

A. A. Krauze, Z. A. Bomika, Yu. É. Pelcher, I. B. Mazheika, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1982

Language:

english

File:

PDF, 483 KB

english, 1982

136

Structure and properties of 2,4a-dimethyl-4-phenyl-3-ethoxycarbonyl-5-oxo-4a,5-dihydro-4H-indeno[1,2-b]pyridine

M. F. Bundule, A. F. Mishnev, Ya. Ya. Bleidelis, V. K. Lusis, D. Kh. Mutsenietse, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1984

Language:

english

File:

PDF, 405 KB

english, 1984

137

Oxidation of some derivatives of tetrahydropyrimidine-5-carboxylic acid with selenium dioxide

E. L. Khanina, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1982

Language:

english

File:

PDF, 225 KB

english, 1982

138

Synthesis and structure of substituted 3,4-dihydropyridin-2-ones

A. A. Krauze, É. É. Liepin'sh, Z. A. Kalme, Yu. É. Pelcher, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1984

Language:

english

File:

PDF, 405 KB

english, 1984

139

Cation radicals in the electrochemical oxidation of 2,6-dimethyl-3,5-ethoxycarbonyl-1,2-dihydropyridines

L. Kh. Baumane, Ya. V. Ogle, R. A. Gavar, Ya. P. Stradyn', G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1983

Language:

english

File:

PDF, 81 KB

english, 1983

140

Electrochemical oxidation of substituted 3,4-dihydro-2-pyridones at a rotating graphite electrode with a ring

V. P. Kadysh, Ya. P. Stradyn', Ya. V. Ogle, Yu. É. Pelcher, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1984

Language:

english

File:

PDF, 505 KB

english, 1984

141

Synthesis of 3-cyano-4-aryl-5-ethoxycarbonyl-6-methyl-3,4-dihydropyridine-2-thiones

A. A. Krauze, É. É. Liepin'sh, Yu. É. Pelcher, Z. A. Kalme, I. V. Dipan, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1985

Language:

english

File:

PDF, 536 KB

english, 1985

142

Synthesis and some reactions of 3-cyanopyridine-2-thiones

A. A. Krauze, Z. A. Bomika, A. M. Shestopalov, L. A. Rodinovskaya, Yu. É. Pelcher, G. Ya. Dubur, Yu. A. Sharanin, V. K. Promonenkov

Journal:

Chemistry of Heterocyclic Compounds

Year:

1981

Language:

english

File:

PDF, 547 KB

english, 1981

143

New method for the preparation of 3-cyano-3,4-dihydropyridine-2(1H)-thiones

A. A. Krauze, Yu. É. Pelcher, Z. A. Kalme, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1984

Language:

english

File:

PDF, 55 KB

english, 1984

144

1,4-Dihydropyridine derivatives as deactivators of singlet oxygen

G. D. Tirzit, I. M. Byteva, K. I. Salokhiddinov, G. P. Gurinovich, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1981

Language:

english

File:

PDF, 283 KB

english, 1981

145

1,4-Dihydropyridine-3,5-di-and 2-methyl-4-aryl-5-oxo-4,5-dihydro-1H-indeno[1,2-b]pyridine-3-carbothionic acid ethyl esters

B. A. Vigante, Ya. Ya. Ozols, G. Ya. Dubur, E. M. Belash, Yu. I. Beilis

Journal:

Chemistry of Heterocyclic Compounds

Year:

1984

Language:

english

File:

PDF, 548 KB

english, 1984

146

Synthesis and antioxidant activities of 2-methyl-5-oxo-1,4-dihydroindeno[1,2-b]pyridines

É. A. Bisenieks, Ya. R. Uldrikis, I. É. Kirule, G. D. Tirzit, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1982

Language:

english

File:

PDF, 261 KB

english, 1982

147

Synthesis and properties of 1-substituted derivatives of diethyl 4-aryl-1,4-dihydrcpyridine-3,5-dicarboxylic acid esters

V. K. Lusis, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1982

Language:

english

File:

PDF, 511 KB

english, 1982

148

Effect of substituents in the dihydropyridine ring on the reactivity of the ester group of 3,5-dialkoxycarbonyl-1,4-dihydropyridines

B. S. Chekavichus, A. É. Sausin', G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1982

Language:

english

File:

PDF, 503 KB

english, 1982

149

Synthesis of 2-phenylimino-4-oxo-2,3-dihydro-1,3-thiazine

E. L. Khanina, D. Kh. Mutsenietse, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1984

Language:

english

File:

PDF, 46 KB

english, 1984

150

Some nucleophilic substitution reactions of 2-chloro-3-cyanopyridines

Z. A. Bomika, M. B. Andaburskaya, Yu. É. Pelcher, G. Ya. Dubur

Journal:

Chemistry of Heterocyclic Compounds

Year:

1976

Language:

english

File:

PDF, 329 KB

english, 1976