Works matching IS 0022152X AND DT 1981 AND VI 18 AND IP 3
Results: 47
The synthesis of 'stretched-out' analogs of lumazine, 6,7-dimethyllumazine and 2-amino-5,6,7,8-tetrahydro-6,7-dimethyl-4-pteridinone.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 539, doi. 10.1002/jhet.5570180320
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Synthesis of New 1 H-indazole derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 591, doi. 10.1002/jhet.5570180331
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Heterocycles. 9. 2-Aryl-2 H-1,4-tetrahydrooxazines.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 451, doi. 10.1002/jhet.5570180302
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1,3-benzoxathioles. A simple synthesis of 3-substituted 2-hydroxybenzenethiols.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 639, doi. 10.1002/jhet.5570180342
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Synthesis of pyrrolo[2,3- b]azepine-4,7-dione derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 507, doi. 10.1002/jhet.5570180313
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Pyrazoles. XVIII.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 559, doi. 10.1002/jhet.5570180324
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Carboxylation and acylation of 4,7-dimethoxyindoles and a study of the corresponding dealkylated derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 613, doi. 10.1002/jhet.5570180335
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Investigation of intramolecular sulfur-nitro interactions in 2-(2′-pyridylthio)-3-nitropyridine by <sup>13</sup>C-NMR spectroscopy and x-ray crystallography.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 469, doi. 10.1002/jhet.5570180306
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Preparation of 2,4-diarylquinolines and substituted dihydrobenz-[c]acridines by the condensation of certain c( α), o-dilithiooximes with 2-aminobenzophenones.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 649, doi. 10.1002/jhet.5570180346
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The preparation of the benzo[4,5]cyclohepta[1,2- b]pyrazine and benzo[4,5]cyclohepta[1,2- b]quinoxaline systems.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 525, doi. 10.1002/jhet.5570180317
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Structure and reactions of a thiazolino[3,2- a]pyrimidine carbinolamine.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 575, doi. 10.1002/jhet.5570180328
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1,2,4-triazines. 1. A convenient synthesis of 4,5-dihydro-1,2,4-triazin-3-(2 H)one and its 6-substituted derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 631, doi. 10.1002/jhet.5570180339
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Synthesis via pummerer intermediates. IV.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 587, doi. 10.1002/jhet.5570180330
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New Synthesis of (±)-5-hydroxymarmesin, biogenetic precursor of the skin photosensitizing agent bergapten (5-MOP).
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 447, doi. 10.1002/jhet.5570180301
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Anticonvulsant activity and succinate dehydrogenase inhibitory property of new substituted thiobarbiturates.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 635, doi. 10.1002/jhet.5570180341
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A novel synthesis of 4,6-dimethyl- and diphenyl-2,5-dihydro-1,3,5,2-triazaphosphorines.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 503, doi. 10.1002/jhet.5570180312
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Syntheses of some 2-hydroxypyrazine 1-oxides.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 555, doi. 10.1002/jhet.5570180323
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The synthesis of pyridine derivatives from 3-formylchromone.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 607, doi. 10.1002/jhet.5570180334
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The crystal structures of 10-oxa-1,4,7-trithiacyclododecane, 7,10,13-trioxa-1,4-dithiacyclopentadecane, 7,10,13,16-tetraoxa-1,4-dithiacyclooctadecane and 4,7,13,16-tetraoxa-1,10-dithiacyclooctadecane.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 463, doi. 10.1002/jhet.5570180305
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The photochemical synthesis of 4-acyl-1,2-dimethyl-3 H-phenothiazin-3-ones.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 645, doi. 10.1002/jhet.5570180345
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Ethynylogues du nicotinamide et de l'isoniazide.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 519, doi. 10.1002/jhet.5570180316
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Synthesis of 4- β-D-arabinofuranosyl-5,6-dihydro-2 H-1,2,4-thiadiazin-3-one 1,1-dioxide and x-ray diffraction analysis of its 2′,3-anhydro precursor.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 571, doi. 10.1002/jhet.5570180327
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Bipyrans for electrochemical studies. Preparation of polyene-separated bipyrans and bithiopyrans.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 627, doi. 10.1002/jhet.5570180338
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Reinvestigation of the stevens rearrangement of 1-benzyl-1,3,4-trimethyl-1,2,5,6-tetrahydropyridinium salts. II. Synthesis of 2-aryl-3-isopropenyl-1,3-dimethylpyrrolidines.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 485, doi. 10.1002/jhet.5570180309
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Synthesis of 2,3-disubstituted-4-oxothiazolidine 1-oxides.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 633, doi. 10.1002/jhet.5570180340
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Synthesis and antihypertensive properties of a novel series of 3-substituted amino-s-triazolo[3,4-α]phthalazine derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 499, doi. 10.1002/jhet.5570180311
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Condensation of β-cyclocitral with benzaldehyde.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 549, doi. 10.1002/jhet.5570180322
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Synthesis of methylpyridine derivatives. XXXV.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 603, doi. 10.1002/jhet.5570180333
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Regioselective N-alkylation of 1,2,6-thiadiazine 1,1-dioxide derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 459, doi. 10.1002/jhet.5570180304
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Stereochemical assignments of the 7-phenyl-3-oxabicyclo[4.1.0]heptanes.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 643, doi. 10.1002/jhet.5570180344
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Reactions of o-aminonitriles with isocyanates. 2. A facile synthesis of imidazo[1,2- c]quinazoline-2,5-(3 H,6 H)dione.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 515, doi. 10.1002/jhet.5570180315
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Synthèse de polyéthers polycycliques. 1 Stéréosélectivité de l'hétérocyclisation d'alcools tétrahydrofurfuryliques γ,δ-éthyléniques par les sels mercuriques.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 565, doi. 10.1002/jhet.5570180326
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Mannich reaction on 2-(2-benzofuranyl)-1 H-indole. Determination of structure by NMR spectroscopic techniques.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 623, doi. 10.1002/jhet.5570180337
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Chemistry of the phenoxathiins and isosterically related heterocycles. XVI.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 479, doi. 10.1002/jhet.5570180308
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Investigation in tetronic acid ketoxime derivatives. Structure and beckmann rearrangement. Synthesis of 3-acetamidotetronic acids.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 535, doi. 10.1002/jhet.5570180319
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Novel heterocycles. 7. Reaction of 2-chloronicotinonitrile with thioureas. Synthesis of the pyrido[2,3- d]pyrimido-[2,1- b][1,3]thiazine ring system.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 495, doi. 10.1002/jhet.5570180310
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Structure et synthèses nouvelles dans la série des amino-4 dihydro-5,6 méthyl-6 pyrones-2.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 543, doi. 10.1002/jhet.5570180321
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Synthesis of some 2,9-disubstituted-1,10-phenanthrolines.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 599, doi. 10.1002/jhet.5570180332
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Coupling to the pyrimido[4,5- b][1,4]oxazine ring system: Synthesis of potential antifolates.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 455, doi. 10.1002/jhet.5570180303
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A simple synthesis of some 1,10-phenanthrolines.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 641, doi. 10.1002/jhet.5570180343
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Reaction of 4-chloro-3-nitrocoumarin with glycine and alanine, and the synthesis of 1-benzopyrano[3,2-c]pyrimidine-3,5-dione.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 511, doi. 10.1002/jhet.5570180314
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Cyclisation indolique selon bischler en presence d'acides de Lewis.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 561, doi. 10.1002/jhet.5570180325
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The synthesis of heteroaromatic nitro compounds from 3-nitrochromone.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 619, doi. 10.1002/jhet.5570180336
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Synthesis of cis- and trans-1,3-dicarbomethoxy-2-aminoisoindoline.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 475, doi. 10.1002/jhet.5570180307
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Mass spectral fragmentation pattern of 4,4′-bipyridines. Part II. 4,4′-oxybispyridine and 4,4′-thiobispyridine.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 527, doi. 10.1002/jhet.5570180318
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Pyrimidinylalkylthiols, furo[2,3- d]pyrimidines and derivatives.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 581, doi. 10.1002/jhet.5570180329
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The synthesis of proximal-benzolumazine, proxirnal-benzoxanthine, proximal-benzotheophylline and proximal-benzocaffeine.
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- Journal of Heterocyclic Chemistry, 1981, v. 18, n. 3, p. 653, doi. 10.1002/jhet.5570180347
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