Works matching IS 0022152X AND DT 1999 AND VI 36 AND IP 3
Results: 41
The solid-state michael addition of indole to 4-arylidene-3-methyl-5-pyrazolone.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 697, doi. 10.1002/jhet.5570360320
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Ring transformation of 3-halo-4-methoxycoumarins into pyrazoles with hydrazines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 767, doi. 10.1002/jhet.5570360331
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Reductive cyclization of carbohydrate 2-nitrophenylhydrazones to chiral functionalized 1,2,4-benzotriazines and benzimidazoles.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 589, doi. 10.1002/jhet.5570360302
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Studies on the preparation of 3,4-disubstituted 2-methoxypyridines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 653, doi. 10.1002/jhet.5570360313
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One-step synthesis of novel 2,4-diaminopyrimidine antifolates from bridged alicyclic ketones and cyanoguanidine.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 723, doi. 10.1002/jhet.5570360324
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Polycyclic N-heterocyclic compounds. 55.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 787, doi. 10.1002/jhet.5570360335
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Synthesis and spectral properties of 2,3-dihydro-2-[( o- and p-substituted)anilinylidene]-1 H-4-( p-methylphenyl)-7-[( o- and p-methyl)phenoxy]-1,5-benzodiazepines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 611, doi. 10.1002/jhet.5570360306
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Synthesis and NMR investigation of 3,4-diazabicyclo[4.3.0]non-2-ene and N,N'-azo-3-azabicyclo[3.3.0]octane. X-ray crystal structure analysis of a new tetrazene derivative.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 681, doi. 10.1002/jhet.5570360317
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Reaction of E-2-arylidene-1-indanones, Z-aurones, Z-1-thioaurones and Z-2-arylidene-2,3-dihydro-1 H-indol-3-ones with diazomethane.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 747, doi. 10.1002/jhet.5570360328
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Ring transformations of heterocyclic compounds. XVII.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 813, doi. 10.1002/jhet.5570360339
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An improved synthetic approach to thieno[2,3- d]-1,2,3-thiadiazolecarboxylates via diazotization of aminothiophene derivatives.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 761, doi. 10.1002/jhet.5570360330
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The chemistry of 4 H-3,1-benzoxazin-4-ones.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 563, doi. 10.1002/jhet.5570360301
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Synthesis and X-ray structure of a novel 1,2,4-trithiolane.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 823, doi. 10.1002/jhet.5570360341
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Cyclization of 2- and 3-indolylthiobenzoic, phenylacetic and nicotinic acids and esters to novel indole-containing tetracyclic ring systems.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 643, doi. 10.1002/jhet.5570360312
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Synthesis of new pyrazolo[4,3- c]quinolin-3-one derivatives and some oxazolo[4,5- c]quinoline-2,4-diones.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 719, doi. 10.1002/jhet.5570360323
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Studies on pyrazines. 35.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 783, doi. 10.1002/jhet.5570360334
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Reductive ring cleavage of 1-alkyl-4-benzoylamino-5-phenyl-3-pyrazolidinones with raney-nickel alloy. Synthesis of N-benzoyl-3-alkylamino-3-phenylalanine amides from rel-(4 R,5 R)-4-benzoylamino-5-phenyl-3-pyrazolidinone.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 607, doi. 10.1002/jhet.5570360305
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Synthesis and spectral data of unknown lilolidine spiro derivatives.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 675, doi. 10.1002/jhet.5570360316
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EIMS study of new isomeric N-substituted hydrazones of 2-(3- and 4-)-pyridinecarboxaldehydes.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 739, doi. 10.1002/jhet.5570360327
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New 2-substituted 4-hydroxy-2 H-1,2-benzothiazine-3-carboxamide 1,1-dioxides: Spectral and pharmacological properties.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 803, doi. 10.1002/jhet.5570360338
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A new domino reaction based on [4+2]-cycloadditions of pyrido[1,2- a]pyrazines with azadienophiles.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 627, doi. 10.1002/jhet.5570360309
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Facile synthesis of furobenzothiazepines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 819, doi. 10.1002/jhet.5570360340
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Synthesis of purinobenzodiazepine and purinobenzotriazocine derivatives, two new heterocyclic ring systems.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 639, doi. 10.1002/jhet.5570360311
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Chalcogenopyranones from disodium chalcogenide additions to 1,4-pentadiyn-3-ones. The role of enol ethers as intermediates.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 707, doi. 10.1002/jhet.5570360322
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An efficient general synthesis of 1-(benzotriazol-1-yl)alkyl esters.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 777, doi. 10.1002/jhet.5570360333
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A facile and convenient method for the preparation of macrocyclic diamides.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 601, doi. 10.1002/jhet.5570360304
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A quantitative study of substituent effects on oxidative cyclization of some 2-aryl-substituted aldehyde thiosemicarbazones induced by ferric chloride and cupric perchlorate.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 667, doi. 10.1002/jhet.5570360315
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Polycyclic systems: Synthesis of isoindolo[2,1- b]-pyrrolo[1,2- d][2,4]benzodiazocine and isoindolo-[1,2- d]pyrrolo[1,2- a] [1,5]benzodiazocine.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 735, doi. 10.1002/jhet.5570360326
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Oxidative ring-opening of rel-(2 R,3 R,5 S)-5-aryl-2-benzoylamino-6,7-bis(methoxycarbonyl)-2,3-dihydro-1-oxo-3-phenyl-1 H,5 H-pyrazolo[1,2- a]-pyrazoles. Synthesis of rel-(2 R,3 R)-3-phenyl-3-[5-aryl-3,4-bis(methoxycarbonyl)pyrazolyl-1]alanine esters.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 799, doi. 10.1002/jhet.5570360337
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N-(2-tetrahydrofuranyl)azole nucleoside analogs by reactions of azoles with dihalomethanes in tetrahydrofuran.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 623, doi. 10.1002/jhet.5570360308
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Acyliminium ion-olefin cyclization leading to isoindolo[2,1- a]quinoline derivatives.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 691, doi. 10.1002/jhet.5570360319
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Reaction of 4,5-diamino-3-methyl-1-phenylpyrazole with 3-dimethylaminopropiophenones. Synthesis of new 4-aryl-6-methyl-8-phenyl-2,3-dihydropyrazolo[3,4- b]diazepines and 4-aryl-8-methyl-6-phenyl-2,3-dihydropyrazolo[4,3- b]diazepines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 635, doi. 10.1002/jhet.5570360310
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An alternative synthesis of piritrexim, a lipophilic inhibitor of human dihydrofolate-reductase.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 703, doi. 10.1002/jhet.5570360321
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Syntheses of diaza-18-crown-6 ligands containing two units each of 4-hydroxyazobenzene, benzimidazole, uracil, anthraquinone, or ferrocene groups.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 771, doi. 10.1002/jhet.5570360332
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Aminopyrazoles and their conjugated acids. An X-ray study of 3,5-dimethyl-4-aminopyrazole and the Picrate of 3(5)-aminopyrazole.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 595, doi. 10.1002/jhet.5570360303
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Synthesis of methyl 3-amino-4-aryl(or methyl)sulfonyl-2-thiophenecarboxylates from 3-alkoxy-2-aryl(or methyl)-sulfonylacrylonitriles.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 659, doi. 10.1002/jhet.5570360314
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Synthesis and reactions of fluoroaryl substituted 2-amino-3-cyanopyrroles and pyrrolo[2,3- d]pyrimidines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 729, doi. 10.1002/jhet.5570360325
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Synthesis of some 2-substituted-thioxanthones.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 793, doi. 10.1002/jhet.5570360336
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Complete regioselective formation of 2-(arylsulfinyl)diphenyl sulfides from 5-arylthianthreniumyl perchlorates.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 617, doi. 10.1002/jhet.5570360307
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2-Aryl-7,7-dimethyl-5,6,7,8-tetrahydrothieno[3,2- c]azepin-4-ones from 5,5-dimethyl-1,3-cyclohexanedione.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 687, doi. 10.1002/jhet.5570360318
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Synthesis of pyrido[4,3,2- de]quinazolines via nitro-substituted tetrahydroquinolines.
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- Journal of Heterocyclic Chemistry, 1999, v. 36, n. 3, p. 755, doi. 10.1002/jhet.5570360329
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