Works matching IS 0022152X AND DT 1990 AND VI 27 AND IP 2

Results: 66

Kinetic study on the anelation of heterocycles. 2. pyrido[2,3- b]pyrazine and pyrido[3,4- b]pyrazine derivatives synthesized by the hinsberg reaction.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 157, doi. 10.1002/jhet.5570270208

By:

Abasolo, María Inés;
Bianchi, Daniel;
Atlasovich, Fabián;
Gaozza, Carlos;
Fernández, Beatriz M.

Publication type:

Article

Synthesis and stereochemistry of novel [1,2,4]oxadiazolo[4,5- a][1,5]benzodiazepine derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 371, doi. 10.1002/jhet.5570270250

By:

Chimirri, Alba;
Grasso, Silvana;
Ottanà, Rosaria;
Romeo, Giovanni;
Zappalà, Maria

Publication type:

Article

Synthesis of acenaphtho[1,2- x]heterocycles and spiro[acenaphthylene 1-isoxazoles].

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 227, doi. 10.1002/jhet.5570270221

By:

Lefkaditis, D. A.;
Nicolaides, D. N.;
Papageorgiou, G. K.;
Stephanidou-Stephanatou, J.

Publication type:

Article

A new approach for the synthesis of pteridines: The synthesis of 3-substituted-2-thioxo-1,2-dihydro-4(3 H)-pteridinones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 433, doi. 10.1002/jhet.5570270261

By:

Urleb, Uros;
Neidlein, Richard;
Kramer, Walter

Publication type:

Article

Preparation of new macrocyclic polyamines containing 4-(phenylethynyl)pyridine subunit.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 167, doi. 10.1002/jhet.5570270210

By:

Takalo, Harri;
Kankare, Jouko

Publication type:

Article

Acetylenic chemistry: Part 15 [1]. Reactions of 1,2,3,4-Tetrahydro-2,4-dioxopyrido[2,3- d]pyrimidine with 3-bromoprop-1-yne.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 287, doi. 10.1002/jhet.5570270232

By:

Reisch, J.;
2, C. O.;
Oluwadiya, J. O.

Publication type:

Article

Nitrogen bridgehead compounds. Part 77. Addition reaction of 9-methylene-6,7,8,9-tetrahydro-4 H-pyrido[1,2- a]pyrimidin-4-ones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 247, doi. 10.1002/jhet.5570270225

By:

Tóth, Gábor;
Janke, Frank;
Hermecz, István;
Bitter, István

Publication type:

Article

Studies in organic mass spectrometry. VIII.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 135, doi. 10.1002/jhet.5570270203

By:

Ceraulo, L.;
Agozzino, P.;
Ferrugia, M.;
Plescia, S.;
Sprio, V.

Publication type:

Article

An unusual oxazole formation.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 343, doi. 10.1002/jhet.5570270243

By:

Freedman, Jules;
Huber, Edward W.

Publication type:

Article

A Synthesis of imidazo- and pyrimido[1,2- g][1,6]naphthyridinones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 189, doi. 10.1002/jhet.5570270214

By:

Friary, R.;
Schwerdt, J. H.;
Seidl, V.;
Villani, F. J.

Publication type:

Article

Reaction of N-[(α-acetoxy)-4-pyridylmethyl]-3,5-dimethylbenzamide with alkyl isocyanates.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 397, doi. 10.1002/jhet.5570270254

By:

Braña, Miguel F.;
Castellano, José M.;
Donoso, Rosa;
López Rodríguez, María L.;
Yunta, María J. R.;
Walker, Nigel P. C.

Publication type:

Article

Mass spectra of 3(2 H)-cinnolinone and 2-substituted derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 209, doi. 10.1002/jhet.5570270218

By:

Zey, Robert L.;
Gross, Michael L.;
Groenewold, Gary S.

Publication type:

Article

Synthesis and cardiotonic activity of pyrimido[5,4- b][1,4]oxazinones and 1,4-dioxino[2,3- d]pyrimidines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 151, doi. 10.1002/jhet.5570270207

By:

Mátyus, Péter;
Makk, Nándor;
Tegdes, Anikó;
Kosáry, Judit;
Kasztreiner, Endre;
Podányi, Benjamin;
Rabloczky, György;
Kiirthy, Mária

Publication type:

Article

Synthesis of (-)-(S)-3- sec-butyl- and (+)-( S)-5- sec-butyl-2(1 H)-pyridinone.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 311, doi. 10.1002/jhet.5570270236

By:

Chelucci, Giorgio;
Giacomelli, Giampaolo

Publication type:

Article

Methyl 2-benzoylamino-3-dimethylaminopropenoate in the synthesis of heterocyclic systems. An attempt to prepare benzoylamino substituted azolo- and azinopyrimidines with a bridgehead nitrogen atom.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 359, doi. 10.1002/jhet.5570270247

By:

Stanovnik, Branko;
Van De Bovenkamp, Henry;
Svete, Jurij;
Hvala, AleŠ;
Simoni č, Igor;
Tišler, Miha

Publication type:

Article

Mass spectrometric synthesis. V. The gas-phase ion-molecule dimerization of some sulfur containing heterocycles.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 463, doi. 10.1002/jhet.5570270265

By:

Audisio, Guido;
Catellani, Marinella;
Destri, Silvia;
Pelli, Beatrice;
Traldi, Pietro

Publication type:

Article

Synthesis of 3-substituted-4-phenyl-2-thioxo-1,2,3,4,5,6,7,8-octahydrobenzo[4,5]thieno[2,3-á]pyrimidines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 269, doi. 10.1002/jhet.5570270229

By:

Vega, Salvador;
Alonso, Javier;
Diaz, Juan A.;
Junquera, Francisco

Publication type:

Article

Diheterocyclic compounds from dithiocarbamates and derivatives thereof. I. 2,2′-(arylenediamino)bisbenzoazoles, 2,2′-(arylenediamino)bis(imidazopyridines) and 8,8′-(arylenediamino)bispurines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 221, doi. 10.1002/jhet.5570270220

By:

Garín, Javier;
Meléndez, Enrique;
Merchán, Francisco L.;
Merino, Pedro;
Orduna, Jesús;
Tejedor, Rosa;
Tejero, Tomás

Publication type:

Article

Syntheses and conformational analyses of some 3-amino-2,5-dioxo-2,3,4,5-tetrahydro-1 H-1-benzazepine derivatives: X-ray crystal structure of 35-3-[[(1,1-dimethylethoxy)carbonyl]amino]-2,5-dioxo-2,3,4,5-tetrahydro-1 H-1-benzazepine.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 279, doi. 10.1002/jhet.5570270231

By:

Ball, Jonathan B.;
Wong, Margaret G.;
Capuano, Benny;
Gulbis, Jacqueline M.;
Mackay, Maureen F.;
Alewood, Paul F.

Publication type:

Article

Preparation of benzofuroxans and benzofurazans of 2,3,4,5-tetrahydrobenzo[b] [1,4]dioxocin and related compounds.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 177, doi. 10.1002/jhet.5570270212

By:

Takakis, Ioannis M.;
Hadjimihalakis, Phaedon M.

Publication type:

Article

Synthesis of 2- N-(benzo[ b]thiophen-2-yl)benzo and heterofused-1,2,3-triazoles.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 417, doi. 10.1002/jhet.5570270258

By:

Sabnis, R. W.;
Rangnekar, D. W.

Publication type:

Article

5-Oxo-1,4-dihydroindenopyridines: Calcium modulators with partial calcium agonistic activity.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 237, doi. 10.1002/jhet.5570270223

By:

Rose, Ulrich

Publication type:

Article

Synthesis of N-[4-[2-(2,4-Diamino-1,6-dihydro-6-oxo-5-pyrimidinyl)-ethylamino]benzoyl]-L-glutamic acid. An acyclic analogue of 5,6,7,8-tetrahydrofolic acid.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 459, doi. 10.1002/jhet.5570270264

By:

Kelley, James L.;
Mclean, Ed W.

Publication type:

Article

Reactivity of 2-methyl-4-(1-pyrrolidinyl)-2 H-1,2-benzothiazine 1,1-dioxide towards p-toluenesulphonyl azide.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 427, doi. 10.1002/jhet.5570270260

By:

Consonni, Roberto;
Croce, Piero Dalla;
Ferraccioli, Raffaella

Publication type:

Article

A facile synthesis of methyl 2-substituted-4-benzoxazolecarboxylates.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 335, doi. 10.1002/jhet.5570270241

By:

Goldstein, Steven W.;
Dambek, Paul J.

Publication type:

Article

Synthesis and derivatization of 4-arylsulfonylthiophene- and furan-2-sulfonamides.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 127, doi. 10.1002/jhet.5570270202

By:

Hartman, George D.;
Halczenko, Wasyl

Publication type:

Article

Chemistry of 5(2 H)-isoxazolones: Novel conversion of positional isomers.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 337, doi. 10.1002/jhet.5570270242

By:

Batra, Sanjay;
Akhtar, Mohammad Shamim;
Seth, Manju;
Bhaduri, Amiya Prasad

Publication type:

Article

Studies on structurally simple α,β-butenolides. VIII. 5-Haloalkyl- and 3-bromo-5-hydroxyalkyl-2(5 H)-furanones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 183, doi. 10.1002/jhet.5570270213

By:

Font, J.;
Sánchez-Ferrando, F.;
Segura, C.;
Piniella, Joan F.;
Jeffrey, George A.;
Ruble, John R.

Publication type:

Article

Condensed 1,3-benzothiazinones 3. Synthesis of 3-substituted 1,2,4-triazolo[3,4- b][1,3]benzothiazin-5-ones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 391, doi. 10.1002/jhet.5570270253

By:

Liu, Kang-Chien;
Shih, Bi-Jane;
Chern, Ji-Wang

Publication type:

Article

Synthesis and 13C NMR of (trifluoromethyl)hydroxypyrazoles.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 243, doi. 10.1002/jhet.5570270224

By:

Lee, Len F.;
Schleppnik, Francis M.;
Schneider, Ronald W.;
Campbell, Dwane H.

Publication type:

Article

Opioid conformations: The remarkable effect of C-14 substituents on ring c conformations of 6α and 6β epimers of 6-substituted epoxymorphinan opioid ligands.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 385, doi. 10.1002/jhet.5570270252

By:

Crouch, Ronald C.;
Bhatia, Ashok V.;
Lever, O. William

Publication type:

Article

Synthesis of 3-substituted-3,4-dihydro-2(1 H)-pyridinones from nitriles.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 307, doi. 10.1002/jhet.5570270235

By:

Chelucci, Giorgio;
Giacomelli, Giampaolo

Publication type:

Article

Nucleophilic addition of 2-, 3-, or 4-[2-(methylamino)ethyl]pyridine to the aziridine, 7-methyl-7-azabicyclo[4.1.0]heptane.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 147, doi. 10.1002/jhet.5570270206

By:

Rees, David C.

Publication type:

Article

Michael additions to acrylonitrile, methyl acrylate and methyl vinyl ketone to Nb-benzylidenetryptophan methyl ester.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 357, doi. 10.1002/jhet.5570270246

By:

Braña, Miguel F.;
Garrido, Mercedes;
López Rodríguez, María L.;
José Morcillo, M.

Publication type:

Article

A facile synthesis of 3-aryl-4-pyrazoleacetic acids and of their 4,5-dihydro derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 205, doi. 10.1002/jhet.5570270217

By:

Curzu, Maria M.;
Pinna, Gérard A.;
Barlocco, Daniela;
Cignarella, Giorgio

Publication type:

Article

The reaction of 2-ethoxycarbonyl-3-isothiocyanatopyridine with α-amino acids. The synthesis of 3-substituted 2-thiooxo-2,3-dihydropyrido[3,2- d]pyrimidin-4(3 H)-ones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 413, doi. 10.1002/jhet.5570270257

By:

Urleb, UroŠ;
Stanovnik, Branko;
Tišler, Miha

Publication type:

Article

Polarized ethylene. V. Synthesis of 1-substituted indolizine, pyrazolo[1,5- a]pyridine, and their related compounds using methoxyethylene derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 263, doi. 10.1002/jhet.5570270228

By:

Tominaga, Yoshinori;
Ichihara, Yuichi;
Mori, Tomoko;
Kamio, Chizuko;
Hosomi, Akira

Publication type:

Article

FAB-Induced deprotonation, elimination and decomposition of 1,3-dithiolane S-oxides.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 327, doi. 10.1002/jhet.5570270239

By:

Bortolini, O.;
Traldi, P.

Publication type:

Article

Reaction of Cα, O-dilithiooximes with functionalized carbonyl compounds. Part 2.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 275, doi. 10.1002/jhet.5570270230

By:

Jarrar, Adil A.;
Hussein, Ahmad Q.;
Madi, Ahmad S.

Publication type:

Article

Reaction of nitriles under acidic conditions. Part VI. Synthesis of condensed 4-chloro- and 4-aminopyrimidines from ortho-aminonitriles.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 119, doi. 10.1002/jhet.5570270201

By:

Shishoo, C. J.;
Devani, M. B.;
Bhadti, V. S.;
Jain, K. S.;
Ananthan, S.

Publication type:

Article

Synthesis and spectra of 12-( o- and p-R-phenyl)-9,9-dimethyl-7,8,9,10,11,12-hexahydro and 8,9,10,11-tetrahydrobenz[ a]acridin-11-ones. Structure correction of 1,2,3,4,5,6-hexahydro and 1,2,3,4-tetrahydro-2,2-dimethyl-5-aryl-6-aza-9,10-benzophenanthren-4-ones. II

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 363, doi. 10.1002/jhet.5570270248

By:

Martínez, Roberto;
Cortés, Eduardo;
Toscano, R. Alfredo;
Linzaga, Irma

Publication type:

Article

Disentangling proton connectivity networks in highly overlapped 1H-NMR spectra of polynuclear aromatics using 1D-HOHAHA.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 455, doi. 10.1002/jhet.5570270263

By:

Shockcor, John P.;
Crouch, Ronald C.;
Martin, Gary E.;
Cherif, Abdallah;
Luo, Jiann-Kuan;
Castle, Raymond N.

Publication type:

Article

Synthesis of new imidazole derivatives as potential inhibitors of thromboxane synthetase.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 215, doi. 10.1002/jhet.5570270219

By:

Banfi, Aldo;
Sala, Alberto;
Soresinetti, P. Angelo;
Russo, Giovanni

Publication type:

Article

Heterocyclic compounds with a bridgehead nitrogen atom. Synthesis in the imidazo[1,2- c]quinazoline series.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 421, doi. 10.1002/jhet.5570270259

By:

Gueiffier, A.;
Viols, H.;
Chapat, J. P.;
Chavignon, O.;
Teulade, J. C.;
Dauphin, G.

Publication type:

Article

Reaction of 2-dimethylaminomethylene-1,3-diones with dinucleophiles. VIII. Synthesis of ethyl and methyl 2,4-disubstituted 5-pyrimidinecarboxylates.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 295, doi. 10.1002/jhet.5570270234

By:

Schenone, Pietro;
Sansebastiano, Laura;
Mosti, Luisa

Publication type:

Article

Syntheses of 4,7-Dimethyl-6-phenyl-5,6,7,8-tetrahydro-4 H-1,3,6-dioxazocin-2-ones and its related compounds.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 143, doi. 10.1002/jhet.5570270205

By:

Nishiyama, Tomihiro;
Yamaguchi, Hiromasa;
Yamada, Fukiko

Publication type:

Article

Bis heterocycles as potential chemotherapeutic agents. X. Synthesis of bis(4-arylthiosemicarbazido)-, bis(2-arylamino-1,3,4-thiadiazol-5-yl) and bis(4-aryl-1,2,4-triazolin-3-thione-5-yl)pentanes and related compounds.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 351, doi. 10.1002/jhet.5570270245

By:

Ram, Vishnu J.;
Mishra, Lallan;
Pandey, N. H.;
Kushwaha, D. S.;
Pieters, Luc A. C.;
Vlietinck, Arnold J.

Publication type:

Article

Mechanism of the cycloaddition-elimination reactions of 4-methyl-5-phenylimino-δ2-1,2,3,4-thiatriazoline with alkyl and aryl isothiocyanates.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 199, doi. 10.1002/jhet.5570270216

By:

L'Abbé, Gerrit;
Buelens, Karin

Publication type:

Article

The synthesis and transformations of 2-ethoxycarbonyl-3-isothiocyanatopyridine. Pyrido[3,2- d]pyrimidines and some azolopyrido[3,2- d]pyrimidines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 407, doi. 10.1002/jhet.5570270256

By:

Urleb, UroŠ;
Stanovnik, Branko;
Tišler, Miha

Publication type:

Article

Mass spectral study of differently substituted 2-oxo- and 2-thioxo-1,3,4-benzotriazepines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 2, p. 259, doi. 10.1002/jhet.5570270227

By:

Vainiotalo, P.;
Mälkönen, P. J.;
Richter, P.;
Morgenstern, O.

Publication type:

Article