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A New synthesis of 4,5,6,7-tetrahydrofuro[2,3-c]pyridines and furo[2,3-c]pyrrolidines
- Pages: 1169-1171
- First Published: July/August 1990
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The acid-catalyzed rearrangement of 1-N-allylindolines
- Pages: 1173-1175
- First Published: July/August 1990
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Synthesis of benzimidazo-substituted 3-quinolinecarboxylic acids as antibacterial agents
- Pages: 1177-1180
- First Published: July/August 1990
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Synthesis of isochroman-fused pyrazolone and pyrimidine derivatives
- Pages: 1181-1184
- First Published: July/August 1990
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Formation of oxadiazolo[4,5-a]indolines via addition reactions of cycloalkano[b]indoles with nitrile oxides. Crystal structure of an adduct
- Pages: 1185-1189
- First Published: July/August 1990
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Arene imine derivatives of nitrogen heterocycles: 1a,9b-dihydrobenz[h]-azirino[f]quinoline, 1a,9b-dihydrobenz[f]azirino[h]quinoline and 1a,9b-dihydroazirino[f][1,10]phenanthroline
- Pages: 1197-1200
- First Published: July/August 1990
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Synthesis of 3-benzoyl-4,7-dihydro-7-oxopyrrolo[3,2-b]pyridine-6-carboxylic acid derivatives as potential antimicrobial agents
- Pages: 1201-1207
- First Published: July/August 1990
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Oxidative halogenation of substituted pyrroles with cu(II). Part I. Bromination of some 3-acetylpyrroles
- Pages: 1209-1211
- First Published: July/August 1990
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Reaction of biguanides and related compounds. XVI. Synthesis of s-triazinones and fused s-triazinones by carbonylation of biguanides and related compounds with diethyl azodicarboxylate
- Pages: 1213-1216
- First Published: July/August 1990
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Synthesis of quinoline derivatives using ketene dithioacetals
- Pages: 1217-1225
- First Published: July/August 1990
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Synthesis of some novel polyoxygenated quinolines
- Pages: 1227-1232
- First Published: July/August 1990
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Synthesis of large macrocyclic tetraaza compounds with a methylene backbone: Cyclo[-NH- (CH2)n-]4, (n = 6, 7, 8, 9 and 10). The formation of 28-, 32-, 36-, 40- and 44-membered rings
- Pages: 1233-1239
- First Published: July/August 1990
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Synthesis and absorption spectra of 2-substituted 5,8-dimethoxy-4H-1-benzothiopyran-4-one 1,1-dioxides
- Pages: 1241-1244
- First Published: July/August 1990
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Synthesis of 3-aminopyrazolo[3,4-d]pyrimidine derivatives using N-bis(methylthio)methylene-p-toluenesulfonamide
- Pages: 1245-1248
- First Published: July/August 1990
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On triazoles. XXI†. Synthesis of 1,2,4-triazolyldithiocarbonates
- Pages: 1249-1257
- First Published: July/August 1990
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Bromination of sydnones. III†. Bromination of 3-(2-substituted-phenyl)sydnones and subsequent side chain modification
- Pages: 1259-1263
- First Published: July/August 1990
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Synthesis and characterization of macrocyclic ligands containing benzene and/or pyridine rings and their nickel(II), copper(II) and zinc(II) complexes
- Pages: 1265-1271
- First Published: July/August 1990
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Reaction of β-arylidennaphthylamines with 4-hydroxycoumarin. A correction in structural assignment of the product. III
- Pages: 1273-1276
- First Published: July/August 1990
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Oxidative halogenation of substituted pyrroles with cu(II). Part II. Bromination of some ethyl 3-pyrrolecarboxylates and corresponding acids
- Pages: 1277-1280
- First Published: July/August 1990
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1,3-Dipolar cycloaddition reactions of vinylcephalosporins with diazoalkanes†
- Pages: 1281-1285
- First Published: July/August 1990
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A convenient synthesis of 3-aryl-3,4-dihydroisoquinolinium salts
- Pages: 1287-1292
- First Published: July/August 1990
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An unusual HgCl rearrangement in electron impact mass spectrometry of some halomercurioalkyl derivatives
- Pages: 1293-1295
- First Published: July/August 1990
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Differentiation of isomeric 1-, 3- and 7-deazaadenosines by electron ionization mass spectrometry†
- Pages: 1297-1305
- First Published: July/August 1990
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A series of novel acyclic nucleosides. II†. Synthesis of acyclic nucleosides bearing an imidazo[4,5-d] [1,3]oxazine ring
- Pages: 1307-1311
- First Published: July/August 1990
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Pyridazines. LI†. On the Reactivity of Pyridazine-carbaldehydes towards Selected Active-Hydrogen Compounds‡
- Pages: 1313-1321
- First Published: July/August 1990
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Substituent effects on the photocycloaddition reactions of phenol to benzonitriles
- Pages: 1323-1327
- First Published: July/August 1990
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Polycondensed heterocycles. IV. synthesis of 1,4-dioxo-2,3,3a,4-tetrahydro-1H-pyrrolo[2,1-c][1,4]benzothiazine†
- Pages: 1329-1335
- First Published: July/August 1990
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Synthesis of methyl-substituted lariat ethers containing a 13-crown-4 ring
- Pages: 1337-1339
- First Published: July/August 1990
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Diheterocyclic compounds from dithiocarbamates and derivatives thereof. III†. 3,3′-arylenebis(2,4-dioxo-1,2,3,4-tetrahydroquinazolines)
- Pages: 1341-1344
- First Published: July/August 1990
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Diheterocyclic compounds from dithiocarbamates and derivatives thereof. IV†. 3,3′-arylenebis-(4-oxo-2-thioxo-1,2,3,4-tetrahydroquinazolines)
- Pages: 1345-1349
- First Published: July/August 1990
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Diheterocyclic compounds from dithiocarbamates and derivatives thereof. V. 4,4′-dioxo-2,2′-dithioxo(dioxo)-6,6′-biquinazolines
- Pages: 1351-1354
- First Published: July/August 1990
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Synthesis, structural and conformational study of 6-hydroxy (or acyloxy) derivatives of the 1,3-dimethyl-1,3-diazoniatricyclo[3.3.1.13–7]decane system
- Pages: 1355-1359
- First Published: July/August 1990
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Synthesis of dl-guinesines and related compounds
- Pages: 1361-1367
- First Published: July/August 1990
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Synthesis of new arylbenzofurodiazepin-6-ones
- Pages: 1369-1375
- First Published: July/August 1990
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Metallation of diazines II. First metallation of pyridazine, metallation of 2,4-dichloropyrimidine
- Pages: 1377-1381
- First Published: July/August 1990
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New dehydration in the pyrrolo[1,2–6-b]isoquinoline series. Preparation and structural identification of 3,5-dihydrobenz[f]indolizin-3-one
- Pages: 1383-1386
- First Published: July/August 1990
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Stereoselective synthesis and stereochemical determination of 2,5-dialkylpyrrolidines and 2,6-dialkylpiperidines
- Pages: 1387-1392
- First Published: July/August 1990
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Synthesis of 2-chloro-4,6-di(heteroaryl)pyrimidines
- Pages: 1393-1400
- First Published: July/August 1990
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Réactivité des esters de la carboxyméthylène-1 hydroxy-4 méthyl-6 pyridone-2 vis-à-vis des aldéhydes aromatiques
- Pages: 1401-1406
- First Published: July/August 1990
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Isoindole derivatives from o-diacylbenzenes and aromatic amines
- Pages: 1407-1408
- First Published: July/August 1990
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Synthesis of acyclic nucleoside analogs of 6-substituted 2-aminopurines and 2-amino-8-azapurines†
- Pages: 1409-1413
- First Published: July/August 1990
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Synthesis of 1,2,3-thiadiazole-5-carbaldehydes and their conversion into 6aδ4-Thia-1,2,5,6-tetraazapentalenes
- Pages: 1415-1418
- First Published: July/August 1990
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Palladium-catalyzed synthesis of isocoumarin and 1-isoquinolinone derivatives
- Pages: 1419-1424
- First Published: July/August 1990
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1,3-Dipolar cycloaddition reactions of 1,3,4-oxadiazin-6-ones with nitrile oxides†
- Pages: 1425-1432
- First Published: July/August 1990
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Tautomerism in some quinaldyl sulfones
- Pages: 1433-1435
- First Published: July/August 1990
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A new synthetic approach to the C-D ring portion of streptonigrin analogues
- Pages: 1437-1440
- First Published: July/August 1990
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Dimroth-rearranged products in the reactions of 1-aryl-2-methylthiopyrimidinium salts with hydrazines
- Pages: 1441-1445
- First Published: July/August 1990
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Some transformations of 3-amino-4-alkoxycarbonyl-6-hydroxy-2H-1-benzopyran-2-ones. The synthesis of [1] benzopyrano[3,4-d]-[1,3]oxazine and [1] benzopyrano[3,4-d]pyrimidine derivatives
- Pages: 1447-1451
- First Published: July/August 1990
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Synthesis of novel cyclic sulfone dihydropyridines facilitated by a selective ethyl diazoacetate ring expansion
- Pages: 1453-1456
- First Published: July/August 1990
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Synthesis, 1H, 13C-NMR and mass spectral study of aryloxyquinuclidinium salts
- Pages: 1457-1466
- First Published: July/August 1990
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Studies on quinazolinones. 2†. Synthesis of 2-(4-benzylpiperazin-1-ylmethyl)-2,3-dihydro-5H-oxazolo[2,3–6]quinazolin-5-one and -2,3-dihydro-5H-thiazolo[2,3-b]quinazolin-5-one
- Pages: 1467-1472
- First Published: July/August 1990
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Reaction of electron rich heterocycles with electrophiles. Formylation of indoles via thiomethylation
- Pages: 1473-1476
- First Published: July/August 1990
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Proton-ionizable crown compounds. 19. The synthesis of chiral dialkyl-substituted triazolo-18-crown-6 macrocycles
- Pages: 1477-1479
- First Published: July/August 1990
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A synthetic entry to isoxazolo[5,4-d]pyrimidine-4(5H)thione and isothiazolo[4,3-d]isoxazole
- Pages: 1481-1484
- First Published: July/August 1990
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2H-1,2,4-benzothiadiazine 1,1-dioxides 2†. A condensation of 2-aminobenzenesulfonamide with chloroalkyl isothiocyanates
- Pages: 1485-1488
- First Published: July/August 1990
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Non-steroidal antiinflammatory agents. VI. Synthesis of 10-oxo-5H-pyrrolo[1,2-b]isoquinoline-3-acetic Acid, a conformationally restricted analogue of tolmetin
- Pages: 1489-1493
- First Published: July/August 1990
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Electron impact mass spectrometry and collisional spectroscopy in the structural characterization of 4-benzylidene and 4-phenylethylidene-2-phenyl-5(4H)-oxazolones
- Pages: 1495-1499
- First Published: July/August 1990
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Some reactions of thieno-fused quinoline N-oxides
- Pages: 1501-1504
- First Published: July/August 1990
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8-Bromo-6-alkylamino-2-trifluoromethyl-9H-purines with in vitro activity against influenza a virus
- Pages: 1505-1508
- First Published: July/August 1990
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Synthesis and antibacterial activity of 2,3-dehydroofloxacin
- Pages: 1509-1511
- First Published: July/August 1990
Communications to the Editor
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Unambiguous structure of the compounds in the reaction of L-tryptophan and 5-hydroxy-l-tryptophan with alkyl isocyanates in acetone
- Pages: 1513-1516
- First Published: July/August 1990
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S,N-heterocycles 2†. A convenient, one-pot synthesis of 2-alkylamino-4H-1,3,4-benzothiadiazines
- Pages: 1517-1518
- First Published: July/August 1990
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Double 1,3-dipolar cycloadditions of meso-ionic heterocycles with N-phenylmaleimide
- Pages: 1519-1520
- First Published: July/August 1990