Works matching IS 0022152X AND DT 2008 AND VI 45 AND IP 4
Results: 54
Simple microwave-assisted ligand-free suzuki cross-coupling: Functionalization of halo-pyrimidine moieties.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1077, doi. 10.1002/jhet.5570450420
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2-(Azulen-1-yl)-4,6-diphenyl substituted six-membered heteroaromatics.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1139, doi. 10.1002/jhet.5570450431
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Regio- and stereoselective synthesis of isoxazolidine derivatives by asymmetric 1,3-dipolar cycloaddition reaction of chiral nitrones with 1-propene-1,3-sultone.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 957, doi. 10.1002/jhet.5570450402
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An efficient and expeditious microwave-assisted synthesis of quinoxaline derivatives via nucleophilic heteroaromatic substitution.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1199, doi. 10.1002/jhet.5570450442
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Synthesis of some novel pyrazolo[1,5- a]pyrimidine, 1,2,4-triazolo[1,5- a]pyrimidine, pyrido[2,3- d]pyrimidine, pyrazolo[5,1- c]-1,2,4-triazine and 1,2,4-triazolo[5,1- c]-1,2,4-triazine derivatives incorporating a thiazolo[3,2- a]benzimidazole moiety.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1033, doi. 10.1002/jhet.5570450413
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Studies with S-alkylpyrimidine: New route for the synthesis derivatives of isoxazol, pyrazolo[1,5- a]pyrimidine, pyridazine, pyridine, thieno[2,3- b]pyridine and thiophene of potential anti-HIV.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1057, doi. 10.1002/jhet.5570450417
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Synthesis of some novel methylene-bis-pyrimidinyl-spiro-4-thiazolidinones as biologically potent agents.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1121, doi. 10.1002/jhet.5570450428
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Synthesis of a new class of bisheterocycles from phenacylsulfonylacetic acid methyl ester.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1131, doi. 10.1002/jhet.5570450430
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Facile acidic hydrolysis and displacement reactions of 2-chloro-and 2,9-dichloro-1,10-phenanthroline.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1167, doi. 10.1002/jhet.5570450435
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Selective modification of bifunctional heterocyclic compounds containing amino and thioamide groups in acetic acid medium.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1215, doi. 10.1002/jhet.5570450446
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Synthesis of new imidazole derivatives.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1247, doi. 10.1002/jhet.5570450453
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Microwave-assisted regioselective one-pot synthesis of trisubstituted pyridine scaffolds using K<sub>5</sub>CoW<sub>12</sub>O<sub>40</sub>.3H<sub>2</sub>O under solvent free conditions.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1099, doi. 10.1002/jhet.5570450424
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Synthesis of some novel 2-substituted-N-aryl-benzoxazole-5-carboxamides using cobalt dipyridine dichloride as a catalyst.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1187, doi. 10.1002/jhet.5570450439
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N-[(Diphenoxyphosphoryl)oxy]-2-phenyl-1 H-benzimidazole as a versatile reagent for synthesis O-alkylhydroxamic acids.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 981, doi. 10.1002/jhet.5570450406
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Progress in the chemistry of 4- thiazolidinones.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 939, doi. 10.1002/jhet.5570450401
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Highly efficient intramolecular cyclizations of 2′-hydroxychalcones to 4-chloro-2 H-chromenes under vilsmeier conditions.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1195, doi. 10.1002/jhet.5570450441
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I<sub>2</sub>-catalyzed reactions of schiff base and alkyl aldehyde towards benzo[ f]quinoline derivatives.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1027, doi. 10.1002/jhet.5570450412
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An efficient synthesis of new benzo[1′,2′:6,7]quinolino[2,3- d]-pyrimidine derivatives via three-component microwave-assisted reaction.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1243, doi. 10.1002/jhet.5570450452
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A convenient synthesis of novel 1,3,4-triaryl-3,4-dihydropyrimidin-2(1 H)-ones by cyclization of aromatic isocyanates with β-arylamino-1-phenylpropan-1-ones.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1095, doi. 10.1002/jhet.5570450423
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Synthesis and anti-HIV-1 evaluation of 1,5-disubstituted pyrimidine-2,4-diones.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1161, doi. 10.1002/jhet.5570450434
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Studies with 2-arylhydrazononitriles: Further investigations on reactivity of 2-arylhydrazononitriles towards hydroxylamine.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 975, doi. 10.1002/jhet.5570450405
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Facile routes to 1,2,4-triazolo[3,4- b][1,3,4]thiadiazines and 1,2,4-triazino[3,4- b][1,3,4]thiadiazine by heteropolyacides.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1211, doi. 10.1002/jhet.5570450445
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Synthesis of some oxazolyl - pyrazolyl; 1,4-Dihydropyridinyl-pyrazolyl and 1,2,3,4-tetrahydro pyrimidinyl-pyrazolyl coumarins.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1051, doi. 10.1002/jhet.5570450416
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Synthesis and biological evaluation of novel methylene-bis-[1,5]-benzodiazepines.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1115, doi. 10.1002/jhet.5570450427
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An efficient and clean one-pot synthesis of 3,4-dihydropyrimidine-2(1 H)-ones catalyzed by tungstate sulfuric acid in solvent-free conditions.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1183, doi. 10.1002/jhet.5570450438
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Synthesis and biological evaluation of novel methylene-bisthiazolidinone derivatives as potential nematicidal agents.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 999, doi. 10.1002/jhet.5570450409
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Synthesis and characterization of N-arylsulfonylazetidines.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1229, doi. 10.1002/jhet.5570450449
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Oxalic acid as a versatile catalyst for one pot facile synthesis of 3,4-dihydropyrimidin-2-(1 H)-ones and their thione analogues.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1191, doi. 10.1002/jhet.5570450440
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6-Nitro-1,2,3,4-tetrahydroquinolines by a tandem reductive amination-S<sub>N</sub>Ar reaction.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1155, doi. 10.1002/jhet.5570450433
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Synthesis of novel 5,7-disubstituted 8-hydroxyquinolines.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1023, doi. 10.1002/jhet.5570450411
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Synthesis of new 3-(trifluoromethyl)-1 H-indoles by reduction of trifluoromethyloxoindoles.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 969, doi. 10.1002/jhet.5570450404
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Studies with phenylsulfone derivatives: Synthesis of pyrrole, thiophene and their fused derivatives.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1237, doi. 10.1002/jhet.5570450451
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Ketene dithioacetals-source for different heterocycles.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1089, doi. 10.1002/jhet.5570450422
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A convenient synthesis and biological activities of novel 6-aryl-3-(1,2,3,4-tetrahydroxybutan-1-yl)-7 H-1,2,4-triazolo-[3,4- b][1,3,4]thiadiazines.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 987, doi. 10.1002/jhet.5570450407
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Reactions of 4-dimethylamino-3-quinolinyl sulfides with nitrating mixture and transamination of 4-dimethylamino-3-methylsulfinyl-6-nitroquinoline.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1171, doi. 10.1002/jhet.5570450436
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Chemoselective reaction of formalin with 2-(5-substituted-2-hydroxybenzylamino)phenols: Synthesis of 6-substituted 3-(2-hydroxyphenyl)-3,4-dihydro-2 H-benzo[ e][1,3]oxazines.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1207, doi. 10.1002/jhet.5570450444
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Unsymmetrical indirect covariance processing of hyphenated and long-range heteronuclear 2D NMR spectra - Enhanced visualization of <sup>2</sup>J<sub>CH</sub> and <sup>4</sup>J<sub>CH</sub> correlation responses.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1109, doi. 10.1002/jhet.5570450426
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Synthesis and biological activities of novel 1,3-bis[substituted-pyridyl (thiazolyl)methyl]-2-substitutedmethylideneimidazolidines.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1045, doi. 10.1002/jhet.5570450415
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A facile synthesis and heteroannulation of thiazolopyrimidine and related heterocyclic systems.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 993, doi. 10.1002/jhet.5570450408
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First synthesis of selenadiazolo[3,4- i].
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1179, doi. 10.1002/jhet.5570450437
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Dichloro dicyano quinone (DDQ) as coupling reagent for high yield synthesis of 3,4-dihydropyrimidin-2(1 H)-ones.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1225, doi. 10.1002/jhet.5570450448
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Preparation of derivatives of 1-(2-pyrimidinyl)piperazine as potential antianxiety, antidepressant, and antipsychotic agents.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1005, doi. 10.1002/jhet.5570450410
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Heterocondensed thiophenes and thiazoles by THORPE-ZIEGLER cyclization.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1071, doi. 10.1002/jhet.5570450419
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New one- pot synthesis of pyrazolo[3,4- c]pyridazine and isoxazolo-[5,4- b]pyridine derivatives from potassium cyanoacetahydroxamate.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1233, doi. 10.1002/jhet.5570450450
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Synthesis of pyrazolo[3,4- b]pyridines using ammonium acetate as green reagent in multi-component reactions.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1221, doi. 10.1002/jhet.5570450447
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An efficient microwave-assisted synthesis furo[3,4- b]-[4,7] phenanthroline and indeno[2,1- b][4,7]phenanthroline derivatives in water.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1065, doi. 10.1002/jhet.5570450418
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Green multicomponent synthesis of 1,2-dihydro-pyrimido[1,2- a]-benzimidazole-3-carbonitrile.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1127, doi. 10.1002/jhet.5570450429
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Facile synthesis of 6-aryl-5 H-8-oxa-4 b, 7-diaza-benzo[ a]azulen-9-one derivatives, new tricyclic heterocycles.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1083, doi. 10.1002/jhet.5570450421
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Darzens reaction of 2-bromo-4,6-dimethoxy-3(2 H)-benzofuranone with aromatic aldehydes to form flavonoids.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 1149, doi. 10.1002/jhet.5570450432
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Photocyclisations of some 3-alkoxy-2-thienylchromones.
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- Journal of Heterocyclic Chemistry, 2008, v. 45, n. 4, p. 963, doi. 10.1002/jhet.5570450403
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