Works matching IS 0022152X AND DT 1992 AND VI 29 AND IP 6
Results: 54
A new synthetic route to polyaza-crown macrocycles through the per( N-formyl)polyaza-crowns.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1429, doi. 10.1002/jhet.5570290610
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Studies in organic mass spectrometry. Part 15 [1]. Electron ionization mass spectra of some 5-nitro-3-thiophenecarboxanilides.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1657, doi. 10.1002/jhet.5570290650
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Synthesis of derivatives of pyrazolo[1,5- a]pyrrolo[1,2- c][1,3,6]-benzotriazocine, a new class of compounds with potential CNS activity.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1499, doi. 10.1002/jhet.5570290621
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Synthesis and photochemical degradation of N-arylmethyl derivatives of the herbicide 3-amino-1,2,4-triazole.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1561, doi. 10.1002/jhet.5570290632
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Synthesis of tetrahydrobenzophenanthridinones. V.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1385, doi. 10.1002/jhet.5570290603
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Selective N-methylation of ethyl esters of 3-(1 H-imidazol-4-yl)-2-propenoic acid.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1621, doi. 10.1002/jhet.5570290643
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The total synthesis of β-lapachone.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1457, doi. 10.1002/jhet.5570290614
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n-Butyl by-products in the syntheses of 2-(1- and 2-naphthyl)pyridines via lithiation.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1673, doi. 10.1002/jhet.5570290654
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Condensation products of 2-bromo-3-substituted-inden-1-ones with several primary amines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1525, doi. 10.1002/jhet.5570290625
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Methyl imidazo[1,2- b]pyridazine-2-carbamates and related compounds as potential antifilarial agents.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1583, doi. 10.1002/jhet.5570290636
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Synthesis of novel bicyclic pyridazine nucleosides.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1409, doi. 10.1002/jhet.5570290607
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Indole alkaloids from the roots of an african plant securidaca longipedunculata. I. Isolation by column chromatography and preliminary structural characterization by mass spectrometry.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1641, doi. 10.1002/jhet.5570290647
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Synthesis of indolizines and pyrrolo[2,1- b]azoles from 2-pyridylmagnesium bromide and 2-lithiated azoles using tris(alkylthio)-cyclopropenyl cations as a three-carbon building block.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1473, doi. 10.1002/jhet.5570290618
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Synthesis of 6-amino-2-aryl-1,2-dihydro-3 H-pyrido[2,3- d]pyrimidin-4-one derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1545, doi. 10.1002/jhet.5570290629
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Synthesis of the four stereoisomers of several 3-(1-aminoethyl)pyrrolidines. Important intermediates in the preparation of quinolone antibacterials.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1481, doi. 10.1002/jhet.5570290620
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New triazole antifungal agents derived from mercaptomethylisoxazoles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1557, doi. 10.1002/jhet.5570290631
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Functionalised enaminones and their use in heterocyclic synthesis.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1375, doi. 10.1002/jhet.5570290602
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Synthesis and spectral properties of 6 H-2,7,7-trimethyl-7,8-dihydrofuro[3,2- c]azepines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1617, doi. 10.1002/jhet.5570290642
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New heterocyclic structures. [1,2,5]Thiadiazolo[3′,4′:4,5]pyrimido-[2,1- b][1,3]thiazine and thiazolo[3,2 a][1,2,5]thiadiazolo[3,4- d]pyrimidine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1449, doi. 10.1002/jhet.5570290613
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Selective synthesis of 1,3-Di(pyridylimino)-isoindolines from tetracyanobenzene.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1671, doi. 10.1002/jhet.5570290653
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Syntheses of triazolo[6,7- d]phthalide and triazolo[6,7- d]dihydrocoumarin.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1519, doi. 10.1002/jhet.5570290624
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α-Pyrones. II.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1577, doi. 10.1002/jhet.5570290635
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A short synthesis of 5′- O-trityl-protected threo- and erythro- 3′-cyano-3′-deoxythymidine epimers using free-radical chemistry.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1405, doi. 10.1002/jhet.5570290606
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Orientation effects in the nitration of the dithieno[ b,d]pyridine N-oxides. Its dependence on acidity of the reaction medium.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1635, doi. 10.1002/jhet.5570290646
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Electrophilic substitution of diazonium salts in 2-amino-4-(alkyl or aryl)oxazoles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1469, doi. 10.1002/jhet.5570290617
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Synthesis and stereochemistry of (3α)-6β,7β-dihydroxy- and 6β-hydroxy-8-alkyl-8-azabicyclo[3.2.1]octane-3-spiro-5′-imidazoline-2′,4′-diones.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1541, doi. 10.1002/jhet.5570290628
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A novel synthesis of methyl cis-(3-thienyl)glycidate with 2-aminothiophenol and the synthesis of [1,5]benzothiazepine derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1605, doi. 10.1002/jhet.5570290639
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1-Chloro-2-azapropenylium and 1-chloro-2,4-diazabutenylium salts. Intermediates for the synthesis of pyrido[1,2- a]-1,3,5-triazinium salts.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1551, doi. 10.1002/jhet.5570290630
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A facile preparation of 2-(2-arylethyl)- and 2-(aminomethyl)indoles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1371, doi. 10.1002/jhet.5570290601
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The synthesis of novel polycyclic heterocyclic ring systems via photocyclization. 8.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1613, doi. 10.1002/jhet.5570290641
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Synthesis of chiral 3-substituted-3-aminomethyl-pyrrolidines and related compounds.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1441, doi. 10.1002/jhet.5570290612
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The synthesis of a new benzothiazine derivative, related to oxicams, synthesized from natural safrole.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1667, doi. 10.1002/jhet.5570290652
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Synthesis of quinazolino-1,3-benzothiazine derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1513, doi. 10.1002/jhet.5570290623
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A convenient synthesis of 2-amino-6-methoxy-1-methyl (and 1,4-dimethyl)carbazole derivatives and their 6-aza analogues.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1573, doi. 10.1002/jhet.5570290634
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Synthesis of N-phenylpyrrole and pyrazole amidines and related diamines.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1401, doi. 10.1002/jhet.5570290605
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New synthesis of 2(1 H)-pyridone derivatives.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1631, doi. 10.1002/jhet.5570290645
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A synthesis of 5-carboxamidopyrrolo[3,2- b]pyridine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1465, doi. 10.1002/jhet.5570290616
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Synthesis of 3-nitro- and 3-aminoquinoline-2,4-diones. An unexpected route to 3-hydroxyquinoline-2,4-diones.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1535, doi. 10.1002/jhet.5570290627
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Reactions of thioquinanthrene with sodium alkanethiolates. The smiles rearrangement of diquinolinyl sulfides.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1599, doi. 10.1002/jhet.5570290638
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On the oximation of diaryl-β-diketones.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1423, doi. 10.1002/jhet.5570290609
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A convenient synthesis of 1,2,4-triazolo[4,3,2- o,p]-[1,3]diazocino[4,5- b]quinoxalines via a 1,3-dipolar cycloaddition reaction and a ring transformation.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1653, doi. 10.1002/jhet.5570290649
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Electrophilic acetylation and bromination reactions of benzo[ b]naphtho[2,3- e][1,4]dioxin.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1609, doi. 10.1002/jhet.5570290640
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Reactions of tetrasulfur tetranitride with bromomethyl ketones. One pot synthesis of 3,5-diaroyl- and 3,5-diacyl-1,2,4-thiadiazoles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1433, doi. 10.1002/jhet.5570290611
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Synthesis of 3-vinylpiperidine.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1663, doi. 10.1002/jhet.5570290651
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Synthesis and reactivity of furo[2,3- e]pyrrolo[1,2- a][1,4]diazepin-9-one.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1507, doi. 10.1002/jhet.5570290622
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Alkylation of pyridine-3,5-dicarboxamide and pyridine-3,5-dicarbonitriles by radical substitution.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1567, doi. 10.1002/jhet.5570290633
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Synthesis of substituted 14-crown-4 compounds.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1389, doi. 10.1002/jhet.5570290604
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Palladium-catalyzed synthesis of indoles from 2-nitrostyrenes.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1625, doi. 10.1002/jhet.5570290644
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Tautomerism of some amino aza-containing heterocycles.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1461, doi. 10.1002/jhet.5570290615
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Cis and trans 4,8-dimethyl-6-phenyl-5,6,7,8-tetra-hydro-4 H-1,3,6-oxadiazocin-2-ones: Conformational studies and configurational assignments by NMR.
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- Journal of Heterocyclic Chemistry, 1992, v. 29, n. 6, p. 1529, doi. 10.1002/jhet.5570290626
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