Works matching IS 0022152X AND DT 1991 AND VI 28 AND IP 3
Results: 50
Synthesis of brain-targeted 5-iodo-, 5-vinyl- and ( E)-5-(2-iodovinyl)-2′-deoxyuridines coupled to a dihydropyridine ⇌ pyridinium salt redox chemical delivery system.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 711, doi. 10.1002/jhet.5570280327
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Proton-ionizable crown compounds. 20. The synthesis of polyazatriazolo-, polyazabistriazolo- and bispyridono-crown ligands containing lipophilic hydrocarbon substituents.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 773, doi. 10.1002/jhet.5570280338
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Isolation of 1,2,3,4-tetrahydrobenzo[ f]quinolin-2-ones on the reaction of 2-arylidenenaphthylamines with 4-hydroxycoumarin. IV.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 589, doi. 10.1002/jhet.5570280309
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Synthesis of 2-Aryl-3-hydroxy-4,9-dihydrocyclohepta[ b]pyran-4,9-diones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 817, doi. 10.1002/jhet.5570280349
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Nitrogen Bridgehead Compounds. Part 81.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 781, doi. 10.1002/jhet.5570280340
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Products from furans. XV.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 599, doi. 10.1002/jhet.5570280311
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(±)-5′-Nor ribofuranoside carbocyclic guanosine.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 823, doi. 10.1002/jhet.5570280351
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Synthèse de 2-pyrimidinylphénols et de 2-pyrazolylphénols.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 667, doi. 10.1002/jhet.5570280322
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Substituent interaction with ring sulfur in some heterocyclic compounds.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 749, doi. 10.1002/jhet.5570280333
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Synthesis of 3-amino-5 H-1,2,3-triazino[5,4- b]indol-4-one. New compounds with blood platelet antiaggregation activity.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 557, doi. 10.1002/jhet.5570280304
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Study on the murexide reaction. V.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 801, doi. 10.1002/jhet.5570280344
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Synthesis of (±)-pantolactone and (±)-dihydro-4-ethyl-3-hydroxy-4-methyl-2(3 H)-furanone.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 619, doi. 10.1002/jhet.5570280315
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Identification, synthesis and conformational study of a CN( R,S) synthon by-product: (5 R, 10 R)-5,10-diphenyl-1,6-diaza-3,8-dioxabicyclo[4.4.1]undecane.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 705, doi. 10.1002/jhet.5570280326
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Synthesis of new 2-aryl-3,3a-dihydro-4-oxo-5 H-pyrazolo-[1,5- d][1,2,4]triazines and some of their derivatives.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 769, doi. 10.1002/jhet.5570280337
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Homolytic alkylations of substituted pyridazines [1].
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 583, doi. 10.1002/jhet.5570280308
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Halogenation and nitration of naphtho[1,2- c][1,2,5]thiadiazole.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 813, doi. 10.1002/jhet.5570280348
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Synthesis and NMR spectroscopy (<sup>1</sup>H <sup>13</sup>C) of 1-(2′-benzothiazolyl)-3(5),4-polymethylenepyrazoles and related compounds.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 647, doi. 10.1002/jhet.5570280319
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Synthesis and spectroscopic characterization of 1-[1,2,3-triazol-1-yl]-4-aroylazetidin-2-ones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 593, doi. 10.1002/jhet.5570280310
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Trifluoromethyl substituted 4-pyrones via self-condensation of trifluoroacetoacetates.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 819, doi. 10.1002/jhet.5570280350
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The synthesis and chemistry of 5-carboxy-8-mercaptoquinoline hydrochloride monohydrate: An intermediate in the synthesis of novel H<sup>+</sup>,K<sup>+</sup>-ATPase inhibitors.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 657, doi. 10.1002/jhet.5570280321
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Intramolecular photoreactions of 4-(ω-alkenyloxy)-6-methyl-2-pyrones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 745, doi. 10.1002/jhet.5570280332
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Heterocyclization of Acetamidrazones. I. Synthesis of 1,2,4-triazolo[4,3- a]pyridines via ring closure of 6-(2-acylhydrazino)pyridine intermediates.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 797, doi. 10.1002/jhet.5570280343
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Synthesis and structure of pyrazolo[5,1- a]isoindol-8-ones from Aromatic Ortho Diesters.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 613, doi. 10.1002/jhet.5570280314
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Products from Furans. XVI.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 697, doi. 10.1002/jhet.5570280325
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The convergent syntheses of pyrazinyl and quinoxalinyl phenylmethanones from 2-lithio pyrazines and quinoxalines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 765, doi. 10.1002/jhet.5570280336
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The synthesis of aryl 4-nitro-5-imidazolyl sulfone radiation sensitizers sterically protected against glutathione reaction.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 577, doi. 10.1002/jhet.5570280307
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A convenient synthesis of 2-arylidene-3,8-dihydro-2 H-cyclohepta[ b]furan-3,8-diones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 811, doi. 10.1002/jhet.5570280347
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<sup>13</sup>C NMR investigation of tautomeric and acid-base equilibria of pyrazolone T and three analogs.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 641, doi. 10.1002/jhet.5570280318
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On triazoles XXIV.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 721, doi. 10.1002/jhet.5570280329
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Diheterocyclic compounds from dithiocarbamates and derivatives thereof. VI. unsymmetrical N<sup>1</sup>, N<sup>4</sup>-Bis(2-benzazolyl)sulphanilamides.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 653, doi. 10.1002/jhet.5570280320
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The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 4.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 737, doi. 10.1002/jhet.5570280331
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Diels-alder reactions of cyclohexadienes derived from decarboxylation of photo[4 + 2]cycloadducts between 4,6-dimethyl-2-pyrone and cyclic olefins.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 549, doi. 10.1002/jhet.5570280302
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Electrochemical oxidation of substituted pyrroles. III. Anodic oxidation of 2,5-diphenyl-3-acetylpyrrole.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 793, doi. 10.1002/jhet.5570280342
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Synthesis of bis-2,7-substituted 1,2,3,6,7,8-hexahydroisoindolo[5,6- f]isoindole-1,3,6,8-tetraones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 609, doi. 10.1002/jhet.5570280313
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Quinolone antibacterials. 2. 6-Substituted-7-(2-thiazolyl and thiazolidinyl)quinolones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 685, doi. 10.1002/jhet.5570280324
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Photochemical synthesis of 2-substituted benzothiazoles.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 759, doi. 10.1002/jhet.5570280335
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Cycloaddition of benzothiete and electron-deficient nitriles.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 573, doi. 10.1002/jhet.5570280306
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Design and synthesis of the 3′-aminocarbonylamino, aminothiocarbonylamino and N-(Hydroxy)guanidinyl derivatives of thymidine as potential anti-HIV agents.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 807, doi. 10.1002/jhet.5570280346
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Some new aspects related to the synthesis of meso-substituted porphyrins.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 635, doi. 10.1002/jhet.5570280317
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Synthesis and reactions of 3-carboxytropolone. Conversion to heterocycle-fused troponoid compounds.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 717, doi. 10.1002/jhet.5570280328
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Syntheses and spectral properties of β-iodoureas and 2-amino-4,4-diphenyl-2-oxazolines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 777, doi. 10.1002/jhet.5570280339
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Two-dimensional NMR studies of 2-substituted thioxanthene sulfoxides.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 731, doi. 10.1002/jhet.5570280330
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Synthesis of new polycyclic systems containing the pyrimido[2,1- a]phthalazine skeleton.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 545, doi. 10.1002/jhet.5570280301
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A convenient synthesis of 5,14-methano-16-oxo-1,5,6-benzoxadiazonino[3,4- b]quinoxalines utilizing a 1,3-dipolar cycloaddition reaction and an intramolecular alcoholysis.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 787, doi. 10.1002/jhet.5570280341
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1,3-Dipolar cycloadditions of nitrile oxides with 4-carbethoxymethyleno-4,5,6,7-tetrahydro-6,6-dimethylbenzo[ c][1,2,5]oxadiazole.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 605, doi. 10.1002/jhet.5570280312
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Quinolone antibacterials. 1. 7-(2-substituted-4-thiazolyl and thiazolidinyl)quinolones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 673, doi. 10.1002/jhet.5570280323
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Preparation of diastereomeric 5,8-methanobenzoxazino[2,1-6]- and [2,3-6]-1,3-benzoxazin-4-ones by reaction of norbornane/ene-condensed dihydro-1,3-oxazines with salicyl chloride.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 753, doi. 10.1002/jhet.5570280334
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On triazoles XXIII [1]. The reaction of 5-amino-1,2,4-triazoles with thiacyclohexane β-oxo esters [2].
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 561, doi. 10.1002/jhet.5570280305
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Ozonolysis of 5-bromo- and 5-ethoxy-2-phenyloxazoles. The products and the reaction mechanism.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 805, doi. 10.1002/jhet.5570280345
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Influence of the heterocyclic side ring on orientation during nitrations of 1,2-alkylenedioxy-annelated benzenes and their mononitro derivatives.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 3, p. 625, doi. 10.1002/jhet.5570280316
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