Works matching IS 0022152X AND DT 1997 AND VI 34 AND IP 2
Results: 61
Conformational and stereoelectronic control in ring-transformations of cis-4,5-dialkoxytetrahydropurine-2,6,8-triones.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 477, doi. 10.1002/jhet.5570340220
- By:
- Publication type:
- Article
meta-Benzenotetratetrazolophanes.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 691, doi. 10.1002/jhet.5570340260
- By:
- Publication type:
- Article
Synthesis of halosulfuron-methyl via selective chlorination at 3- and/or 5-position of pyrazole-4-carboxylates.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 537, doi. 10.1002/jhet.5570340231
- By:
- Publication type:
- Article
Positive ions and negative ions fab (fast atom bombardment) mass spectrometry of some bisazolium salts.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 367, doi. 10.1002/jhet.5570340202
- By:
- Publication type:
- Article
New anti-tumor agents. 3. Phenolic benzopyran lactone and amine derivatives.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 601, doi. 10.1002/jhet.5570340242
- By:
- Publication type:
- Article
Ethyl (4- N-acylaminopyridin-3-yl)glyoxylate and 5-azaisatin as new synthons for a route to various new polyheterocycles.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 441, doi. 10.1002/jhet.5570340213
- By:
- Publication type:
- Article
Molecular structure and electronic spectrum of ellagic acid: Semiempirical molecular orbital calculations.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 665, doi. 10.1002/jhet.5570340253
- By:
- Publication type:
- Article
Retro-ene reactions in heterocyclic synthesis, III. A new route to 4,5-dihydrooxazoles and 5,6-dihydro-4 H-1,3-oxazines.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 501, doi. 10.1002/jhet.5570340224
- By:
- Publication type:
- Article
A novel synthesis of 3-halo-2-phenylquinoline-4-carboxylic acids.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 557, doi. 10.1002/jhet.5570340235
- By:
- Publication type:
- Article
Bicyclic [ b]-heteroannulated pyridazine derivatives. 4.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 389, doi. 10.1002/jhet.5570340206
- By:
- Publication type:
- Article
A new efficient route to imidazo[4,5- c]pyrazol-5-ones.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 629, doi. 10.1002/jhet.5570340246
- By:
- Publication type:
- Article
The nucleophilic ring-opening of N-benzylquinuclidinium bromide.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 461, doi. 10.1002/jhet.5570340217
- By:
- Publication type:
- Article
Hydrogen-deuterium exchange in dimethylpyridines.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 685, doi. 10.1002/jhet.5570340257
- By:
- Publication type:
- Article
Synthesis of pyrido[2,3- d]pyrimidinones by the reaction of aminopyrimidin-4-ones with benzylidene meldrum's acid derivatives.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 521, doi. 10.1002/jhet.5570340228
- By:
- Publication type:
- Article
Synthesis of dithia- and tetrathiacyclophanes incorporating isoxazole units.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 579, doi. 10.1002/jhet.5570340239
- By:
- Publication type:
- Article
Ring-transformation reactions of 5-hydroxy-2-oxabicyclo[3.2.0]-heptan-4-ones and 5-hydroxy-2-oxabicyclo[3.2.0]hept-6-en-4-ones.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 533, doi. 10.1002/jhet.5570340230
- By:
- Publication type:
- Article
Application of the mitsunobu reaction in the field of alkaloids.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 349, doi. 10.1002/jhet.5570340201
- By:
- Publication type:
- Article
A new and facile synthesis of imidazo[2,1- b]oxazoles.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 589, doi. 10.1002/jhet.5570340241
- By:
- Publication type:
- Article
Mass spectrometry of 3-oxothiazolo[3,2- a] and [3,2- c]pyrimidin-5-ones. Correlation of the intensities of the M<sup>+.</sup> and the selected fragment ions.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 435, doi. 10.1002/jhet.5570340212
- By:
- Publication type:
- Article
A new route to the improved synthesis of 1-(alkoxymethyl)-5-alkyl-6-(arylselenenyl)uracils.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 659, doi. 10.1002/jhet.5570340252
- By:
- Publication type:
- Article
Furopyridines. XXI.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 493, doi. 10.1002/jhet.5570340223
- By:
- Publication type:
- Article
Synthesis and metalation of trifluoromethylpyrimidines. Metalation of diazines. XVI.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 551, doi. 10.1002/jhet.5570340234
- By:
- Publication type:
- Article
Synthesis of 2-aminoquinazolines from ortho-fluorobenzaldehydes.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 385, doi. 10.1002/jhet.5570340205
- By:
- Publication type:
- Article
Use of sulfur derivatives as an ortho directing group for the metalation of diazines. Metalation of diazines. XVIII.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 621, doi. 10.1002/jhet.5570340245
- By:
- Publication type:
- Article
Unexpected formation of benzaldehydes by the reactions of dithioacetals derived from cinnamaldehydes with 2,3-dichloro-5,6-dicyano- p-benzoquinone in aqueous solvents.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 457, doi. 10.1002/jhet.5570340216
- By:
- Publication type:
- Article
A convenient synthesis of 1,3-oxazolidin-4-ones and 1,3-oxazin-4-ones.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 681, doi. 10.1002/jhet.5570340256
- By:
- Publication type:
- Article
Facile and convenient synthesis of 2,6-disubstituted 4 H-1,3-oxazin-4-one derivatives.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 515, doi. 10.1002/jhet.5570340227
- By:
- Publication type:
- Article
Reactions of 1,2,4-triazin-5(2 H)-ones with phenols and aromatic amines.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 573, doi. 10.1002/jhet.5570340238
- By:
- Publication type:
- Article
A new synthetic route to 2-substituted naphtho[2,3- b]furan-4,9-dione2-Substituted Naphtho[2,3- b]furan-4,9-dione.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 407, doi. 10.1002/jhet.5570340209
- By:
- Publication type:
- Article
Diastereoselective michael addition of nitrogen and sulfur-nucleophiles to α,β-unsaturated δ-thiolactams.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 643, doi. 10.1002/jhet.5570340249
- By:
- Publication type:
- Article
Synthesis of Dialkyl 1,4-Dihydro-2,6-dimethyl-4-(heteroaryl)-pyridine-3,5-dicarboxylates as Calcium Channel Antagonists.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 585, doi. 10.1002/jhet.5570340240
- By:
- Publication type:
- Article
Reaction of 5-substituted-2-amino-2-oxazolines with ethoxycarbonyl isocyanate. A route to 2,3,6,7-tetrahydro-4 H-oxazolo[3,2- a]-1,3,5-triazine-2,4-diones.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 429, doi. 10.1002/jhet.5570340211
- By:
- Publication type:
- Article
Syntheses and spectral properties of 2,3,7,8-tetracyano-5,10-dihydrodipyrazino[2,3- b:2′,3′- e]pyrazine.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 653, doi. 10.1002/jhet.5570340251
- By:
- Publication type:
- Article
The reaction of 3,5-dichloro-2,4,6-trimethylbenzonitrile oxide with chiral fluoro-substituted allyl sulfoxides.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 489, doi. 10.1002/jhet.5570340222
- By:
- Publication type:
- Article
Syntheses of substituted pyrrolo[2,3- d]imidazoles.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 549, doi. 10.1002/jhet.5570340233
- By:
- Publication type:
- Article
Mass spectrometric behaviour of 1-imino-substituted pyrazolo[1,2- a]-[1,2,4]triazoles under electron and chemical ionization.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 381, doi. 10.1002/jhet.5570340204
- By:
- Publication type:
- Article
Reaction of 5-amino-1-phenylpyrazole-4-carbonitriles with dimethyl acetylenedicarboxylate. Synthesis and structural determination of trimethyl 4,8-dioxo-1-phenyl-4,5,5a,8-tetrahydro-1 H-pyrazolo[3,4- e]indolizine-5,5a,6-tricarboxylate derivatives.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 613, doi. 10.1002/jhet.5570340244
- By:
- Publication type:
- Article
Organic syntheses based on 2-oxoglutaric acid. V. Syntheses of novel 2 H-1,4-benzothiazines and a 2,5-dihydro-1,5-benzothiazepine.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 453, doi. 10.1002/jhet.5570340215
- By:
- Publication type:
- Article
Semi-synthesis of paclitaxel from naturally occurring glycosidic precursors.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 675, doi. 10.1002/jhet.5570340255
- By:
- Publication type:
- Article
Haloacetylated enol ethers. 8 [12]. Reaction of β-alkoxyvinyl trihalomethyl ketones with guanidine hydrochloride. Synthesis of 4-trihalomethyl-2-aminopyrimidines.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 509, doi. 10.1002/jhet.5570340226
- By:
- Publication type:
- Article
Friedel-crafts reactions of 2-amino-4-(alkyl or aryl)oxazoles with acid chlorides and acid anhydrides: Synthesis of 5-acyl-2-amino-4-alkyloxazoles.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 567, doi. 10.1002/jhet.5570340237
- By:
- Publication type:
- Article
6-Substituted thioquinanthrenes. Reaction of thioquinanthrene with radicals formed from DMF.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 401, doi. 10.1002/jhet.5570340208
- By:
- Publication type:
- Article
On triazoles XXXVII.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 637, doi. 10.1002/jhet.5570340248
- By:
- Publication type:
- Article
Synthesis of 1,2,4-triazole and thiazole analogs of ketoconazole.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 469, doi. 10.1002/jhet.5570340219
- By:
- Publication type:
- Article
A facile synthesis of the lowest homologues of meso-tetraalkylporphyrin.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 689, doi. 10.1002/jhet.5570340259
- By:
- Publication type:
- Article
Reaction of 4-hydroxy-5-oximino-3-thiophenecarboxylates with hydrazines. Formation of pyrazolylthiohydroxamic acids.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 413, doi. 10.1002/jhet.5570340210
- By:
- Publication type:
- Article
On the relocation of the amino functionality to the ethyl side chain in aminoglutethimide: Synthesis and aromatase-inhibitory activity of 3-(2′- N,N-diethyl-amino)ethyl-3-phenylpiperidine-2,6-dione.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 649, doi. 10.1002/jhet.5570340250
- By:
- Publication type:
- Article
Convenient synthesis of 6-substituted-2-chloro-5,12-dihydro-5-oxobenzoxazolo[3,2- a]quinolines and N-acylated-3-chlorodibenz[ b,e][1,4]oxazepin-11(5 H)-ones.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 485, doi. 10.1002/jhet.5570340221
- By:
- Publication type:
- Article
Long-range <sup>1</sup>H-<sup>15</sup>N two-dimensional heteronuclear shift correlation of the alkaloid vincamine at natural abundance.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 695, doi. 10.1002/jhet.5570340261
- By:
- Publication type:
- Article
Syntheses of polysubstituted pyrroles and of 2,3-disubstituted quinoxalines and substituted benzo[ g]quinoxalines.
- Published in:
- Journal of Heterocyclic Chemistry, 1997, v. 34, n. 2, p. 541, doi. 10.1002/jhet.5570340232
- By:
- Publication type:
- Article