Works matching IS 0022152X AND DT 1991 AND VI 28 AND IP 5
Results: 49
Synthesis and cytotoxic activity of 2-dialkylamino-alkyl-1,3-dihydropyrrolo[3,4- c]quinoline-1,3-diones and 6-(2-dimethylaminoethyl)-1 H-dibenz[ c,e]azepine-5,7-dione.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1173, doi. 10.1002/jhet.5570280502
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Pyridazines. LIX.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1441, doi. 10.1002/jhet.5570280542
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Ring transformations of heterocycles. Part 1. Transformation of 4-amino-Δ<sup>2</sup>-1,2,4-oxadiazolines into 1,3,4-oxadiazoles.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1229, doi. 10.1002/jhet.5570280513
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The synthesis of substituted [1]benzothieno[2,3- c]quinolines and their N-methyl quaternary salts.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1309, doi. 10.1002/jhet.5570280524
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Benzofurans. Improved syntheses of bufuralol, 7-ethyl-2-(2- tert-butylamino-1-hydroxyethyl)benzofuran, and 1″-oxobufuralol, 7-acetyl-2-(2- tert-butylamino-1-hydroxyethyl)benzofuran.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1395, doi. 10.1002/jhet.5570280535
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Protonation studies on the oximes of some 7-acetyl-1,2-benzisothiazoles.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1193, doi. 10.1002/jhet.5570280506
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A convenient synthesis of ethyl 2-(4-nitrophenyl)-3,4-disubstituted and c-fused thiophene-5-carboxylates.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1455, doi. 10.1002/jhet.5570280546
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Ring transformations by ring-chain-transfer. V.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1257, doi. 10.1002/jhet.5570280517
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Regioselective synthesis of 3(or 5)-styryl-/(4-aryl-1,3-butadienyl)-/(6-aryl-1,3,5-hexatrienyl)-5(or 3)-(methylthio)isoxazoles and pyrazoles via α-oxoketene dithioacetals.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1341, doi. 10.1002/jhet.5570280528
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Substituent effect on oxidative cyclization of aldehyde thiosemicarbazones with ferric chloride.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1421, doi. 10.1002/jhet.5570280539
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Further studies on the synthesis of quinazolines from 2-fluorobenzonitriles.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1357, doi. 10.1002/jhet.5570280530
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Carbazoledioxazines having long alkyl groups. 2. Synthesis of carbazoledioxazines with angular type structure.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1165, doi. 10.1002/jhet.5570280501
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On the synthesis of 3-amino-2,3-dihydro-1 H-pyrido[3,2,1- kl]phenothiazine 5,5-dioxide and of 3-amino-1,2-dihydro-3 H-dibenzo[ c,jk]pyrido[2,1- c]-1,4-thiazepine 7,7-Dioxide.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1437, doi. 10.1002/jhet.5570280541
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Carbamoylation of B<sub>6</sub> vitamins.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1225, doi. 10.1002/jhet.5570280512
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Synthesis of 7,8-dihydro-6 H-pyrazolo[3,4- b]quinolin-5-ones and related derivatives.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1301, doi. 10.1002/jhet.5570280523
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Synthesis of benzo-13-crown-4 derivatives.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1387, doi. 10.1002/jhet.5570280534
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Pyrazoles. 6.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1189, doi. 10.1002/jhet.5570280505
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A convenient synthesis of 3-(4-pyridinyl)quinolines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1453, doi. 10.1002/jhet.5570280545
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Reaction of enaminones with carbon disulfide: Synthesis of heterocycles using enamino dithiocarboxylates.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1245, doi. 10.1002/jhet.5570280516
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Synthesis of novel quino[2,3- b][1,5]benzodiazepin-12-ones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1339, doi. 10.1002/jhet.5570280527
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Reaction of 4,5-diamino, 5-amino-4-glucosylamino and 4-amino-5-glucosylaminopyrimidines with nitrous acid. synthesis, anticancer and anti-aids activities of 8-azapurines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1417, doi. 10.1002/jhet.5570280538
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Synthesis of vertical-type bis(pyridodipyrimidines) as a redox catalyst and their autorecycling oxidation of alcohols.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1209, doi. 10.1002/jhet.5570280509
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Aziridination of the uracil 5,6-olefinic bond of 3- N-3′,5′-Di- O-tribenzoyl-5-vinyl-2′-deoxyuridine.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1467, doi. 10.1002/jhet.5570280549
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Assignment of the proton and carbon NMR spectra of the indoloquinoline alkaloid cryptolepine.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1429, doi. 10.1002/jhet.5570280540
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The Synthesis of Octahydro-7-phenylpyrazino[2,1- b][3]benzazepines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1219, doi. 10.1002/jhet.5570280511
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Alkylation of cycloalkano[ B]indoles via indolylmagnesium salts: Synthesis of 3 h-indoles and oxidative rearrangement to spiro[cycloalkane-1,2′-indolin]-3′-ones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1293, doi. 10.1002/jhet.5570280522
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Transformations on 2,3,4,5-tetrahydrobenzo[ b][1,4]-dioxocin leading to substituted ortho-nitroaryl azides, benzofuroxans, benzofurazans and related compounds.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1373, doi. 10.1002/jhet.5570280533
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Synthesis, X-ray crystal structure determination and antiinflammatory activity of the regioisomers: 5-phenyl-6-(4-pyridyl)-2,3-dihydroimidazo[2,1- b]thiazole and 6-phenyl-5-(4-pyridyl)-2,3-dihydroimidazo[2,1- b]thiazole. A structural reassignment.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1181, doi. 10.1002/jhet.5570280504
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Synthesis of novel c-hetero-fused thiophene derivatives.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1449, doi. 10.1002/jhet.5570280544
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New peptide synthesis using the ozonolysate of 2-(1-phthalimido)alkyl-5-phenyloxazoles.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1241, doi. 10.1002/jhet.5570280515
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Products from furans. VII.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1325, doi. 10.1002/jhet.5570280526
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Synthesis and spectral properties of 4-oxothiazolin-2-yl-[ N-R<sub>1</sub>-2-( para-R<sub>2</sub>-phenyl)indol-3-yl] hydrazones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1413, doi. 10.1002/jhet.5570280537
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Nitration products of substituted 1,3-dihydro-5-phenyl-2 H-1,4-benzodiazepin-2-ones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1203, doi. 10.1002/jhet.5570280508
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The wolff-kishner reduction of 2-acetonyl pyrazines and pyridines. A novel rearrangement.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1463, doi. 10.1002/jhet.5570280548
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Photocyclization reactions. Part 2.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1273, doi. 10.1002/jhet.5570280519
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3-Substituted 2-pyridinecarbaldoximes.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1315, doi. 10.1002/jhet.5570280525
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Synthesis and stereochemistry of stereoisomeric 1,3-benzoxazino-1,3- and -3,1-benzoxazines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1213, doi. 10.1002/jhet.5570280510
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The stereochemical investigation of 8-membered 1,3,6-dioxazocines via NMR.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1369, doi. 10.1002/jhet.5570280532
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Synthesis and properties of a maleimide fluorescent thiol reagent derived from a naphthopyranone.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1177, doi. 10.1002/jhet.5570280503
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Reaction of 2,3-dichloro-1,4-naphthoquinone with dithiooxamide. Synthesis of dibenzo[ b,i]thianthrene-5,7,12,14-tetrone.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1445, doi. 10.1002/jhet.5570280543
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Synthesis of novel acyclonucleosides. Reactions of 1-(1-bromo or 3-bromo-2-oxopropyl)pyridazin-6-ones.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1235, doi. 10.1002/jhet.5570280514
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Synthesis of new heterocyclic phenols: 9-Hydroxypyrido[1,2- a]pyrimidin-4-one and Derivatives.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1287, doi. 10.1002/jhet.5570280521
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Nitrogen bridgehead compounds. Part 80.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1405, doi. 10.1002/jhet.5570280536
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Synthesis of 3,5-disubstituted 1,2,4-triazoles containing trimethoxyphenyl groups: Potential antagonists of platelet activating factor.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1197, doi. 10.1002/jhet.5570280507
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<sup>13</sup>C and <sup>1</sup>H NMR analysis of the nitration products of 2-amino-4-oxo-(3 H)-5-trifluoromethylquinazoline and 2-amino-4-oxo-(3 H)-5-fluoroquinazoline.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1459, doi. 10.1002/jhet.5570280547
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Photocyclization reactions. Part 1. Synthesis of dihydrobenzofuranols using photocyclization of 2-alkoxybenzaldehydes, 2′-alkoxyacetophenones, 2-formylphenoxyacetic acids and 2-acetylphenoxyacetic acids.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1261, doi. 10.1002/jhet.5570280518
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A method for the synthesis of racemic and optically active 2-substituted 9-(2′,3′-dihydroxypropyl)-8-azahypoxanthines and 8-azaadenines.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1351, doi. 10.1002/jhet.5570280529
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An alternative preparation of the 2-dimethylaminomethylene-1,3-bis(dimethylimmonio)propane salt from phosphonoacetic acids and some applications in heterocyclic synthesis.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1281, doi. 10.1002/jhet.5570280520
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Synthesis of 1,3,4-thiadiazin-2-one and 1,3,4-selenadiazin-2-one derivatives as new cardiotonic drugs.
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- Journal of Heterocyclic Chemistry, 1991, v. 28, n. 5, p. 1365, doi. 10.1002/jhet.5570280531
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