Works matching IS 0022152X AND DT 1998 AND VI 35 AND IP 2
Results: 39
A novel synthesis of quinolinium salts via benzotriazole methodology.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 467, doi. 10.1002/jhet.5570350234
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Synthesis and central nervous system stimulant activity of camphor-1,2,4-benzotriazines fused with five and six-membered heterocycles.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 293, doi. 10.1002/jhet.5570350205
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An electron-impact mass spectral (EIMS) study of N-1 and C-6 carboxyalkyl- and alkoxycarbonylalkyl-substituted derivatives of uracil.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 349, doi. 10.1002/jhet.5570350216
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Syntheses of 2-spiroindoles and pyrrolof[1,2- a]indoles.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 421, doi. 10.1002/jhet.5570350227
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Synthesis and debenzoylation products of two perbenzoylated 2-substituted 5- D-galactosyl-1,3,4-oxadiazoles.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 481, doi. 10.1002/jhet.5570350238
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Research on photochemical and thermochemical reactions between indole and quinones in the absence of solvent.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 313, doi. 10.1002/jhet.5570350209
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Synthesis and central nervous system stimulant activity of 5,8-methanoquinazolines fused with 1,2,4-triazole, tetrazoleand 1,2,4-triazine.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 325, doi. 10.1002/jhet.5570350211
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Synthesis and reactions of 1,3-dicarbonyl-substituted troponoids: Conversion to tropolones having an isoxazole or a pyrazole ring.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 389, doi. 10.1002/jhet.5570350222
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The birch reduction of heterocyclic compounds. III. Birch reduction-elimination reaction of 2- and 3-furancarboxylic acid derivatives.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 461, doi. 10.1002/jhet.5570350233
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Synthesis of new proton-ionizable dibenzocrown ethers.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 285, doi. 10.1002/jhet.5570350204
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Synthesis of several deoxy analogues of pancratistatin.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 343, doi. 10.1002/jhet.5570350215
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Synthesis of pyrido[2,3- d]pyrimidines from aminopyrimidinecarbaldehydes.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 413, doi. 10.1002/jhet.5570350226
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Cyclization reactions of 2-(2-chloro-4-nitrophenylsulfonyl)-1-(2-thienyl)ethanone.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 477, doi. 10.1002/jhet.5570350237
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Conversion of 3-hydroxy-1,2,3,4-tetrahydroquinoline-2,4-diones to 2,3a,4,5-tetrahydrofuro[2,3- c]quinoline-2,4-diones via an intramolecular wittig reaction.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 307, doi. 10.1002/jhet.5570350208
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Diastereoselective synthesis of cis-3- and 3,5-alkylpyrrolizidines.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 371, doi. 10.1002/jhet.5570350219
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Synthesis of symmetrical 2,2′,4,4′-tetrasubstituted[4,4′-bioxazole]-5,5′(4 H,4′ H)-diones and their reactions with some nucleophiles.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 317, doi. 10.1002/jhet.5570350210
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New isomeric N-substituted hydrazones of 2-, 3-and 4-pyridinecarboxaldehydes.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 381, doi. 10.1002/jhet.5570350221
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A novel synthesis of 14-(hydroxymethylalkyl) derivatives of dibenzoxanthenes and 3,3-dimethyl-4-(2-hydroxy-1-naphthyl)benzo[ f]chroman.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 457, doi. 10.1002/jhet.5570350232
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Conformational behavior on 2,2,3-trisubstituted 1,2,3,4-tetrahydroquinoline alkaloids, virantmycin, benzastatins, and their congeners, evaluated by semi-empirical molecular orbital calculations.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 279, doi. 10.1002/jhet.5570350203
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Reaction of N<sup>1</sup>, N<sup>2</sup>-diarylacetamidines with (2,4,7-trinitro-9 H-fluoren-9-ylidene)propanedinitriles.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 339, doi. 10.1002/jhet.5570350214
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Reaction of 5-amino-1-aryl-3-methylpyrazoles with benzylidene derivatives of meldrum's acid: Synthesis and characterization of pyrazolo[3,4- b]pyridinones.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 409, doi. 10.1002/jhet.5570350225
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Improved preparation of N-propargyl-2-(5-benzyloxyindolyl)methylamine [a].
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 475, doi. 10.1002/jhet.5570350236
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Nucleophilic substitutions of 2-chloronaphtho[2,3- b]furan-4,9-dione with amines.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 301, doi. 10.1002/jhet.5570350207
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Substitution reactions of phenanthro[9,10- d]triazole with benzyl chlorides.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 365, doi. 10.1002/jhet.5570350218
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The synthesis of hexahydrooxoepithiopyridinedicarboximides by the reaction of thioamides with N-substituted maleimides.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 437, doi. 10.1002/jhet.5570350229
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A study on ester formylhydrazones.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 377, doi. 10.1002/jhet.5570350220
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Haloacetylated enol ethers. 9. Synthesis of 4-trifluoromethyl-2-methyl[phenyl]pyrimidines and tetrahydro derivatives.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 451, doi. 10.1002/jhet.5570350231
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The synthesis and structure of a new type of aromatic heterocyclic macrocycle. IV. Synthesis of a 1,3,4-oxadiazole-containing azomacrocycle.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 275, doi. 10.1002/jhet.5570350202
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Reaction of 5-aminopyrazoles with β-dimethylaminopropiophenones. Synthesis of new pyrazolo[3,4- b]pyridines.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 333, doi. 10.1002/jhet.5570350213
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Preparation of tetrazoles from organic nitriles and sodium azide in micellar media.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 405, doi. 10.1002/jhet.5570350224
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Fused imidazoacridines: Synthesis of 1,3-dihydroimidazo[4,5- b]-acridin-2-one and 1,3-dihydroimidazo[4,5- a]acridin-2-one.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 471, doi. 10.1002/jhet.5570350235
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Synthesis of nonsymmetrically 3,4-disubstituted 1,2,5-thiadiazole dioxides.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 297, doi. 10.1002/jhet.5570350206
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Novel solid-state synthesis of dimeric 4-aryl-1,4-dihydropyridines.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 359, doi. 10.1002/jhet.5570350217
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Metalation of t-butyl sulfoxides, sulfones and sulfonamides of pyridazine and pyrazine. Metalation of diazines. XX.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 429, doi. 10.1002/jhet.5570350228
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Synthesis of (±)-methylenolactocin and (±)- trans cognac lactone.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 485, doi. 10.1002/jhet.5570350239
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Synthesis of 4 H-1,3,4-oxadiazino[5,6- b]quinoxalines from 2-substituted quinoxaline 4-oxides.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 445, doi. 10.1002/jhet.5570350230
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2,4,6-trichloropyrimidine. Reaction with 4-substituted phenolate ions.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 269, doi. 10.1002/jhet.5570350201
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Synthesis and central nervous system stimulant activity of 5,8-methanoquinazolines fused with imidazole, thiadiazole, pyrimidine and 1,3,5-triazine.
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 329, doi. 10.1002/jhet.5570350212
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Synthesis of spiro[2 H-indole-2,1′-1 H-isoindole]-3,3′-diones, spiro[1 H-isobenzofuran-1,2′-2 H-indole]-3,3′-diones and spiro[benzofuran-2,1′-isobenzofuran]-3,3′-diones via transannular reactions of eight membered ring intermediates
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- Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 397, doi. 10.1002/jhet.5570350223
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