Works matching IS 0022152X AND DT 1994 AND VI 31 AND IP 2
Results: 54
Photochemical reactivity of 9-vinyladenine with diethyl fumarate.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 375, doi. 10.1002/jhet.5570310220
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The pictet-spengler reaction and biogenic tryptamines: Formation of tetrahydro-β-carbolines at physiological pH.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 431, doi. 10.1002/jhet.5570310231
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Novel syntheses of 1,3,3-trinitroazetidine.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 271, doi. 10.1002/jhet.5570310202
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New method of synthesis of 1,5-benzodiazepin-2-ones from 4-hydroxycoumarin.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 509, doi. 10.1002/jhet.5570310242
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γ-Radiolysis of 5-fluorouracil and 5-fluorouridine derivatives having sulfur-containing substituents.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 335, doi. 10.1002/jhet.5570310213
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Synthesis and prototropic tautomerism of 1- n-alkyl-3-methyl-4-nitroso-5-pyrazolones.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 561, doi. 10.1002/jhet.5570310253
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Addition of diamines to methylthiopyridones.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 393, doi. 10.1002/jhet.5570310224
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Synthesis of imidazo[4,5- c]pyridines with a trifluoromethyl group at C-4 and/or C-6.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 453, doi. 10.1002/jhet.5570310235
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Reaction of 5-acetyl-10,11-didehydro-5 H-dibenz[ b, f]azepine with pyrrole, N-methylpyrrole, imidazole and N-methylimidazole: Cycloaddition versus michael addition.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 293, doi. 10.1002/jhet.5570310206
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The synthesis of condensed 1,3,5-triazinium perchlorates from diazaiminium intermediates.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 535, doi. 10.1002/jhet.5570310246
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Intramolecular [4 + 2] cycloaddition reactions of pyridazino-[4,5- d]pyridazines with acetylenic side-chain dienophiles: Synthesis of f-annelated phthalazines.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 357, doi. 10.1002/jhet.5570310217
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Synthesis of 1,4-dihydro-4-oxopyrrolo[1,2- b]pyridazine-3-carboxylic acids and 1,4-dihydro-4-oxoimidazo[1,5- b]pyridazine-3-carboxylic acids as potential antibacterial agents.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 409, doi. 10.1002/jhet.5570310228
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Thienoquinolizidinones. Synthesis and rearrangement into new piperidino[1,2- a][1,3] or [1,4]diazepinones fused to a thiophene ring.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 495, doi. 10.1002/jhet.5570310239
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Synthesis and mass spectra of some 1-aroylamino-5-arylaminomethyl-1,2,3-triazoles.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 425, doi. 10.1002/jhet.5570310230
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Synthesis and transformations of some (heteroaryl)acetylazides, (heteroaryl)methyl isocyanates and alkyl (heteroaryl)methyl carbamates.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 265, doi. 10.1002/jhet.5570310201
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Crystal structural determination of ring-chain tautomers of 1,2,3,4-tetrahydro- s-tetrazines.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 505, doi. 10.1002/jhet.5570310241
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Reaction of enaminonitriles with isocyanates. Synthesis of new 2-oxo- and 6-oxopyrimidines.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 329, doi. 10.1002/jhet.5570310212
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Synthesis and NMR assignment of 1,4-oxathiino[3,2- c;5,6- c']diquinoline.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 557, doi. 10.1002/jhet.5570310252
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3-(Thiazolidin-3-yl)rhodanines. A novel class of rhodanine derivatives.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 391, doi. 10.1002/jhet.5570310223
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Chlorination of 3,4-quinolinediyl bis-sulfides and 3-thiosubstituted 4-quinolinethiones with phosphoryl chloride.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 447, doi. 10.1002/jhet.5570310234
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A novel rearrangement of 1-(2-aminoaryl)imidazoles.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 287, doi. 10.1002/jhet.5570310205
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Substituent effects on the tautomer ratios between the hydrazone imine and diazenyl enamine forms in side-chained quinoxalines.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 527, doi. 10.1002/jhet.5570310245
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Synthesis of a novel cyclic sulfone dihydropyridine: An investigation of the isomerization reaction converting an exocyclic double bond isomer into a 1,4-dihydropyridine.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 351, doi. 10.1002/jhet.5570310216
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Unusual ring transformations: Reaction of phenyl 7-fluoro-4-chromone-3-sulfonate with methyl 3-oxo-pentanoate in the presence of ammonium acetate.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 405, doi. 10.1002/jhet.5570310227
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The counter anion effect of (16-ethyl-5,6,7,8-tetrahydro-9 H-dibenzo-[ b, i][1,4,8,11]tetraazacyclotetradecinato)nickel(II) complexes.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 489, doi. 10.1002/jhet.5570310238
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Synthesis, structural, conformational and pharmacological study of new fentanyl derivatives of the camphidine system.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 313, doi. 10.1002/jhet.5570310209
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Synthesis and NMR characterization of 4-[(2-tetrahydro-pyranyloxy)methyl]piperidine and intermediates.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 545, doi. 10.1002/jhet.5570310249
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Thienopyrrolizines: New condensed triheterocyclic systems.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 501, doi. 10.1002/jhet.5570310240
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1,3,4,6-Tetrakis(isopropylthio)thieno[3,4- c]thiophenium bis(tetrafluoroborate): X-ray crystal structure of a stable thieno[3,4- c]thiophene dication.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 325, doi. 10.1002/jhet.5570310211
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The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 14. 14-methylbenzo[ h]naphtho-[1′2′:4,5]thieno[2,3- c][1,6]naphthyridine.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 553, doi. 10.1002/jhet.5570310251
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Intramolecular photoreactions of 6-(ω-alkenyl)-4-methoxy-2-pyrones.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 387, doi. 10.1002/jhet.5570310222
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Enzymatic resolution of 4-methyl-, 4-phenyl- and 6-phenyltetrahydro-2 H-pyran-2-one using esterases.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 441, doi. 10.1002/jhet.5570310233
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Preparation of 4-bromo-1-hydroxypyrazole 2-oxides by nitrosation of α-bromo-α,β-unsaturated ketoximes.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 281, doi. 10.1002/jhet.5570310204
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On the bromination of thieno[ c]-fused 1,5-naphthyridines and their isomeric N-oxides using dibromoisocyanuric acid in fuming sulfuric acid.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 521, doi. 10.1002/jhet.5570310244
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Synthesis of 4- and 5-disubstituted 1-benzylimidazoles, important precursors of purine analogs.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 345, doi. 10.1002/jhet.5570310215
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Condensations of brominated products of o-acetylbenzophenone with several primary amines.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 401, doi. 10.1002/jhet.5570310226
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Synthesis, structure and mass spectral fragmentation of a series of substituted furazano[3,4- b]quinoxaline 1-oxides and their deoxides.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 481, doi. 10.1002/jhet.5570310237
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Synthesis of thieno[3,2- d]pyrimidine-2,4-diones cyclic and acyclic nucleosides as potential anti HIV agents.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 305, doi. 10.1002/jhet.5570310208
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The preparation of aryl 1-(2,6-dimethylphenyl)-2-phenyl-4-trifluoromethyl-5-imidazolyl sulfides and sulfones.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 541, doi. 10.1002/jhet.5570310248
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On the formation of homo-azasteroidal esters of N,N-bis(2-chloroethyl)aminobenzoic acid isomers and their antitumor activity.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 367, doi. 10.1002/jhet.5570310219
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New general synthesis of tetrahydro-1,2,4,5-tetrazin-3(2 H)-one derivatives and stable 3,4-dihydro-3-oxo-1,2,4,5-tetrazin-1(2 H)-yl radical derivatives.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 319, doi. 10.1002/jhet.5570310210
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Synthesis of 4(pyrazol-3-yl)[1,2,4]triazolo[4,3- a]quinoxalines and tetrazolo analog.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 549, doi. 10.1002/jhet.5570310250
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Electrophilic substitution and cyclization of 2,2′-bis( N-methylindolyl): A simple access to potential protein kinase C inhibitor.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 377, doi. 10.1002/jhet.5570310221
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Syntheses of reactive fluorescent stains derived from 5(2)-aryl-2(5)-(4-pyridyl)oxazoles and bifunctionally reactive linkers.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 457, doi. 10.1002/jhet.5570310236
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An efficient synthesis of 6-formyl-1,2-dihydro-2-oxo-3-pyridinecarboxylic acid and some carbonyl derivatives of it and its 6-acetyl homologue.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 297, doi. 10.1002/jhet.5570310207
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Synthesis of 3-( N-alkylamino)acetophenones via a benzyne intermediate.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 537, doi. 10.1002/jhet.5570310247
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Synthesis of 1-substituted 3-nitroquinolin-4(1 H)-ones.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 437, doi. 10.1002/jhet.5570310232
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Facile synthesis of novel spiro[azetidine-2,4′(1′ H)-isoquinoline-1′,3′,4(2′ H)-triones].
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 565, doi. 10.1002/jhet.5570310254
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Studies on isocyanides and related compounds. A convenient synthesis of 2,3-disubstituted spiroimidazolones.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 397, doi. 10.1002/jhet.5570310225
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Ring transformations of heterocyclic compounds. IX.
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- Journal of Heterocyclic Chemistry, 1994, v. 31, n. 2, p. 277, doi. 10.1002/jhet.5570310203
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