Works matching IS 0022152X AND DT 2002 AND VI 39 AND IP 5
Results: 46
Potassium carbonate, a support for the green synthesis of azoles and diazines.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1045, doi. 10.1002/jhet.5570390530
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Studies on the chemistry of thienoannelated O,N- and S,N-containing heterocycles. 25.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 857, doi. 10.1002/jhet.5570390501
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Synthesis and biological evaluation of 9-thia-5,10-dideazafolic acid.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1097, doi. 10.1002/jhet.5570390541
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Synthesis and structural characterisation of 4 H-1,3-benzothiazine derivatives.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 927, doi. 10.1002/jhet.5570390512
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An approach to novel fused triazole or tetrazole derivatives starting from benzimidazo[1,2- a]quinazoline-5(7 H)-one and 5,7-dihydro-5-oxopyrido[3′,2′:5,6]pyrimido[1,2- a]benzimidazole.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1007, doi. 10.1002/jhet.5570390523
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A new convenient method for the synthesis of 2 H-1,4-benzoxazine derivatives from nitroketones via intramolecular reductive cyclization.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1065, doi. 10.1002/jhet.5570390534
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New 1,2,3-triazolo[4,5- e]1,2,4-triazolo[4,3- c]pyrimidine derivatives II.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 885, doi. 10.1002/jhet.5570390505
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Acid-mediated regioselective alkylation of 1,2,3-triazole.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1111, doi. 10.1002/jhet.5570390545
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Isolation of methyl ( RS)-1- tert-butoxycarbonyl-3-cyanomethyl-1,2-dihydro-2-oxo-5 H-pyrrole-5-carboxylate, the key-intermediate in base-catalyzed formation of racemic products by 1,3-dipolar cycloadditions to methyl ( S)-1- tert-butoxycarbonyl-3-[( E)-cyanomethylidene]-2-pyrrolidinone-5-carboxylate
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 957, doi. 10.1002/jhet.5570390516
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Reactions of 1,2-dihydro-4 H-3,1-benzothiazine-2,4-dithiones (trithioisatoic anhydrides) with N-substituted benzylamines and trialkyl phosphites.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1029, doi. 10.1002/jhet.5570390527
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Solvent-free condensation of aromatic aldehydes and 2,3-dimethyl-1-phenyl-3-pyrazolin-5-one by p-toruenesulfonic acid.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1087, doi. 10.1002/jhet.5570390538
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Synthesis of 3-alkylcarbonyloxymethyl derivatives of 5-fluorouracil.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 905, doi. 10.1002/jhet.5570390509
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Synthesis of indazol-4,7-dione derivatives as potential trypanocidal agents.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1093, doi. 10.1002/jhet.5570390540
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Asymmetric reaction of diethylzinc with aldehydes catalyzed by l-menthopyrazole derivatives.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 917, doi. 10.1002/jhet.5570390511
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Synthesis of novel pyrido[3′,2′:5,6]thiopyrano[3,2- b]indol-5(6 H)-ones and 6 H-pyrido[3′,2′:5,6]thiopyrano[4,3- b]quinolines, two new heterocyclic ring systems.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1001, doi. 10.1002/jhet.5570390522
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A versatile synthesis of 2-amino-4 H-pyrido[1,2- a][1,3,5]triazin-4-ones from 2-aminopyridines.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1061, doi. 10.1002/jhet.5570390533
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Synthesis and biological effects of new derivatives of benzotriazole as antimicrobial and antifungal agents.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 877, doi. 10.1002/jhet.5570390504
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Novel synthesis of 2-amino[1,4,5]benzoxadiazepine derivatives via a mild one-pot reaction.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1109, doi. 10.1002/jhet.5570390544
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Synthesis and characterization of stable betainic pyrimidinaminides.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 949, doi. 10.1002/jhet.5570390515
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Condensation of methylhydrazine with 4-ethoxy-1,1,1-trifluoro-3-buten-2-one. A reinvestigation.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1025, doi. 10.1002/jhet.5570390526
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Ultrasonic irradiation of the ullmann condensation: Application to the preparation of dioxolo, dioxino, cyclopent, and imidazolo anthranilic acid derivatives.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1083, doi. 10.1002/jhet.5570390537
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Facile synthesis of model 1,4-dihydro-1 H-1,3,4-benzotriazepin-5-ones.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 901, doi. 10.1002/jhet.5570390508
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Novel fluorescent quater- and quinquifurans: Syntheses and photophysical properties.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 981, doi. 10.1002/jhet.5570390519
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2-Chloro-4,5-dihydroimidazole, Part X.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 911, doi. 10.1002/jhet.5570390510
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Synthesis of 3-Ω-aminohydantoins.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 997, doi. 10.1002/jhet.5570390521
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Synthesis and properties of isoviagra.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1055, doi. 10.1002/jhet.5570390532
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Studies on the reactions of cyclic oxalyl compounds with hydrazines or hydrazones : Synthesis and reactions of 4-benzoyl-1-(3-nitrophenyl)-5-phenyl-1 H-pyrazole-3-carboxylic acid.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 869, doi. 10.1002/jhet.5570390503
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Synthesis and ring transformation of substituted S-(1-phenylpyrrolidine-2-ones-3-yl)isothiuronium salts to substituted 2-imino-5-[2-(phenylamino)ethyl]thiazolidin-4-ones.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1105, doi. 10.1002/jhet.5570390543
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Synthesis of 4-(trihalomethyl)dipyrimidin-2-ylamines from β-alkoxy-α,β-unsaturated trihalomethyl ketones.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 943, doi. 10.1002/jhet.5570390514
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Synthesis of pyrrolidine based natural or unnatural product derivatives (1): Application of efficient asymmetric induction of C-2 position in polysubstituted pyrrolidines.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1019, doi. 10.1002/jhet.5570390525
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Syntheses of N-diazinyl thiocarboxamides and of thiazolodiazines. Metalation studies. Diazines XXXIII.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1077, doi. 10.1002/jhet.5570390536
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Stereoselective dimerization of benzylic amines derived from indoline.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 895, doi. 10.1002/jhet.5570390507
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Heterocyclization reaction of 2-(2-methylaziridin-1-yl)-3-ureidopyridines under appel's conditions.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 975, doi. 10.1002/jhet.5570390518
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Synthesis and antimicrobial activity of novel 2-alkyl/arylcarbamato-6-(1,1-dimethylethyl)-3-cyclohexyl-3,4-dihydro-2 H-1,3,2-benzoxazaphosphorine-2-oxides.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1039, doi. 10.1002/jhet.5570390529
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Synthesis of new 1,2-dihydrophthalazines.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 989, doi. 10.1002/jhet.5570390520
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Fused-ring nitrogen and sulfur heterocycles by a tandem S<sub>N</sub>2-michael addition reaction.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1049, doi. 10.1002/jhet.5570390531
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Synthesis and reactions of 6-methylsulfanyl-2,4-dithioxo-1,2,3,4-tetrahydropyrimidin-5-carbonitrile.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 863, doi. 10.1002/jhet.5570390502
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A convenient method for the preparation of highly substituted pyrimidines: Synthesis of tri- and tetra-subsituted pyrimidines from 1,3-dicarbonyl compounds and N,N,N-tris-(trimethylsilyl)amidines.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1101, doi. 10.1002/jhet.5570390542
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Synthesis and isolation of iodocarbazoles. Direct iodination reaction of N-substituted carbazoles.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 933, doi. 10.1002/jhet.5570390513
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Reactivity of 2-methylene-1,3-dicarbonyl compounds. 1,3-dipolar cycloaddition reaction with nitrile oxide.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1013, doi. 10.1002/jhet.5570390524
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Synthesis of zincic phthalocyanine derivative functionalized with four peripheral tetrathiafulvalene units.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1071, doi. 10.1002/jhet.5570390535
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New 1,2,3-triazolo[4,5- d]1,2,4-triazolo[3,4- b]pyridazine derivatives II.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 889, doi. 10.1002/jhet.5570390506
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Synthesis of novel 1,3,4-oxadiazinane-2-thiones derived from (1 R,2 S-ephedrine, (1 S,2 S)-pseudoephedrine and (1 R,2 S)-norephedrine.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1113, doi. 10.1002/jhet.5570390546
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Efficient photochemical synthesis of tricyclic keto-indoles.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 965, doi. 10.1002/jhet.5570390517
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Enaminones in heterocyclic synthesis: A new regioselective synthesis of 2,3,6-trisubstituted pyridines, 6-substituted-3-aroylpyridines and 1,3,5-triaroylbenzenes.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1035, doi. 10.1002/jhet.5570390528
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N-bromosuccinimide catalyzed condensations of indoles with carbonyl compounds under solvent-free conditions.
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- Journal of Heterocyclic Chemistry, 2002, v. 39, n. 5, p. 1089, doi. 10.1002/jhet.5570390539
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