Works matching IS 0022152X AND DT 1992 AND VI 29 AND IP 4
Results: 66
Reactions of 3-isopropyl-, 3-isopropenyl-, and 3-acetyltropolone methyl ethers with guanidines. Synthesis of 9 H-cyclohepta[d]pyrimidin-9-ones and cycloheptimidazoles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 795, doi. 10.1002/jhet.5570290420
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Syntheses of 2-acetyl-3-hydroxy-1- n-propylpyrrole from isomaltol and 1- n-alkyl-3-hydroxy-2-methyl-4-pyridones from maltol.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1017, doi. 10.1002/jhet.5570290460
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A conformational analysis of the six isomers of thiobispyridine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 851, doi. 10.1002/jhet.5570290431
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Synthesis of some halogenated and disubstituted amino benzylacyclouridine derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 683, doi. 10.1002/jhet.5570290402
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Preparation of 6-(nitron-c-yl)- and 6-(1,3-butadienyl)-2-pyrones and their cycloaddition reactions.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 927, doi. 10.1002/jhet.5570290442
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Some fatty acids having an o-heterocycle in their terminal positions. IV. (2-Methyl-2 H-chromen-2-yl)acetic acids.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 759, doi. 10.1002/jhet.5570290413
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Synthesis and antibacterial activity of new 5-substituted 1-cyclopropyl-6-fluoro-7-piperazinyl-1,4-dihydro-4-oxo-1,8-naphthyridine-3-carboxylic acids.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 985, doi. 10.1002/jhet.5570290453
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Preparation of bis(heteroaryl)iodonium salts via an iodonium transfer reaction between di(cyano)iodonium triflate and organostannes.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 815, doi. 10.1002/jhet.5570290424
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Synthesis of substituted 1 H-pyrrolo[3,2- c]quinolines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1031, doi. 10.1002/jhet.5570290464
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Synthesis of some novel azido/tetrazolothienopyrimidines and their reduction to 2,4-diaminothieno[2,3- d]pyrimidines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 883, doi. 10.1002/jhet.5570290435
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The synthesis of syn- and anti-2( S)-phthalimido-methyl-2,3,4,4a,7,7a-hexahydro-6-oxo-5 H-pyrano-[2,3- b]pyrroles as rigid β-bend peptide-mimetics.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 707, doi. 10.1002/jhet.5570290406
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A facile synthesis of 3-substituted indoles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 953, doi. 10.1002/jhet.5570290446
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Investigation of the synthesis and analgesic activity of 1-substituted 4-(propananilido)perhydroazepines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 779, doi. 10.1002/jhet.5570290417
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Research on nitrogen containing heterocyclic compounds. XVIII. Synthesis of 9 H-pyrrolo[2,1- c]- s-triazolo[4,3- a][1,4]benzodiazepine, a novel tetracyclic ring of pharmaceutical interest.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1005, doi. 10.1002/jhet.5570290457
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Heterocyclic intermediates for the synthesis of disperse and cationic dyes.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 835, doi. 10.1002/jhet.5570290428
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Synthesis of quinazoline derivatives through anionic cycloaddition reactions of methyl 2,4-dimethoxy-6-methyl-5-pyrimidinecarboxylate with acetylenes and olefins.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 911, doi. 10.1002/jhet.5570290439
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Synthesis of novel substituted spirohydantoins.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 847, doi. 10.1002/jhet.5570290430
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On the synthesis of pyrido[3,2,1- kl]phenothiazine, quino[8,1- bc][1,4]benzothiazepine and their derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 675, doi. 10.1002/jhet.5570290401
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Synthesis and characterization of 7,16-dinicotinoyl- and 7,16-diisonicotinoyltetraaza[14]annulene and their nickel(II) and copper(II) complexes.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 921, doi. 10.1002/jhet.5570290441
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Reactions of salicylaldehyde with some conjugated olefins.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 755, doi. 10.1002/jhet.5570290412
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Synthesis, purification and spectroscopic characterization of potential impurities of hexamethylmelamine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 979, doi. 10.1002/jhet.5570290452
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Diels-alder reactions of 2-pyrones with acyclic dienophiles and hydrolyses of the mono-adducts.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 811, doi. 10.1002/jhet.5570290423
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Synthesis of 3-hetaryl-4,5,6,7-tetrahydrobenzo[ b]thiophenes.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1027, doi. 10.1002/jhet.5570290463
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Synthesis and structure of N<sup>1</sup>- e-benzo-4,7,13,16,21,26-hexaoxa-1,10-diazabicyclo[8.8.8]hexacos-23-yl- N<sup>2</sup>-phenylthiourea. Derivative of a bifunctional complexing agent.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 877, doi. 10.1002/jhet.5570290434
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A new synthesis of N-substituted-2-alkyl(or aryl)quinazolin-4-amines by amide base-mediated cyclization of carbox-imidamides derived from 2-(trifluoromethyl)benzenamine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 703, doi. 10.1002/jhet.5570290405
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The meyer-schuster rearrangement and hydrohalide addition of 3-alkynyl-3-hydroxy-1 H-isoindol-1-ones.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 947, doi. 10.1002/jhet.5570290445
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Synthesis of pyrido[1′,2′:1,2]imidazo[4,5- b]quinoxalines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 771, doi. 10.1002/jhet.5570290416
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Reaction of 6-chloro-2-[1-methyl-2-( N-methylthiocarbamoyl)]-hydrazinoquinoxaline 4-oxide with dimethyl acetylenedicarboxylate.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1001, doi. 10.1002/jhet.5570290456
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Methyl 2-benzoylamino-3-dimethylamonopropenoate in the synthesis of heterocyclic systems. A simple synthesis of amino derivatives of isomeric naphthopyranones and naphthodipyranones.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 831, doi. 10.1002/jhet.5570290427
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Study of the reactivity of ketone enolates with 3-halo-2-amino derivatives of benzo[ b]thiophene under photostimulated s <sub>RN</sub>1 reaction conditions.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 905, doi. 10.1002/jhet.5570290438
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Synthesis, structural and conformational study of some amides derived from 3,7-dimethyl-9-amino-3,7-diazabicyclo[3.3.1]nonane-9-carboxamide.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 723, doi. 10.1002/jhet.5570290409
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Conformational analysis of benzoannulated nine-membered rings. Part 3. 1,4,5,7-Tetrahydro-3 H-2,6-benzodiselenine and its 4-spiro derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 967, doi. 10.1002/jhet.5570290449
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Synthesis of some novel halogenated 2,4-diaminoquinazolines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 915, doi. 10.1002/jhet.5570290440
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Synthesis of 5-fluoro-2-methyl-3-(2-trifluoromethyl-1,3,4-thiadiazol-5-yl)-4(3 H)-quinazolinone and related compounds with potential antiviral and anticancer activity.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 749, doi. 10.1002/jhet.5570290411
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Photochemical induced formation of α-alkylamino or alkylaminyl radicals from secondary amines: Reaction with 4-pyridinecarbonitrile.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 975, doi. 10.1002/jhet.5570290451
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Photochemistry of azole N-oxides. Facile photoisomerisation of 2 H-imidazole N-oxides to 1,3-diaza-6-oxabicyclo[3.1.0]hex-3-enes and synthesis of a 1,3-diaza-4,7-dioxatricyclo[4.1.0.<sup>1,6</sup>0<sup>3,5</sup>]heptane.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 803, doi. 10.1002/jhet.5570290422
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A synthesis of 3-hydroxymethyl-2-(6-methylheptanoyl)-4-butanolide (a-factor).
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1025, doi. 10.1002/jhet.5570290462
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Synthesis of lipophilic crown ethers with pendant phosphonic acid or phosphonic acid monoethyl ester groups.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 867, doi. 10.1002/jhet.5570290433
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Metalation of diazines. VI. Metalation of pivaloylaminopyrazine and N-t-butylpyrazinamide. Unusual regioselectivity in the metalation reaction.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 699, doi. 10.1002/jhet.5570290404
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NMR studies of bond orders in heteroaromatic systems.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 935, doi. 10.1002/jhet.5570290444
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Unusual formation of a novel pyrrolo[1′,2′:1,2]pyrido[3,4- b]indole.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 767, doi. 10.1002/jhet.5570290415
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Synthesis of 7-hydroxythioridazine and 7-hydroxysulforidazine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 995, doi. 10.1002/jhet.5570290455
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Preparation of novel tricyclic ring systems containing the pyridazinone ring.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 825, doi. 10.1002/jhet.5570290426
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Natural product chemistry. Part 154.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1035, doi. 10.1002/jhet.5570290466
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Synthesis of indoles via amidoselenation.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 899, doi. 10.1002/jhet.5570290437
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Synthesis and <sup>1</sup>H NMR spectra of some 1-aryl-2,5-pyrrolidinediones.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 719, doi. 10.1002/jhet.5570290408
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The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 7.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 963, doi. 10.1002/jhet.5570290448
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Thermolysis of 3-methyl-3-( o-aryl)-1,2-dioxetanes: Activation parameters and chemiexcitation yields.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 791, doi. 10.1002/jhet.5570290419
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Synthesis of new 3-(phenoxyphenyl)sydnones marija Šindler-kulyk.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 1013, doi. 10.1002/jhet.5570290459
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Pyrimidine derivatives. VII.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 4, p. 741, doi. 10.1002/jhet.5570290410
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