Works matching IS 0022152X AND DT 1999 AND VI 36 AND IP 4

Results: 48

An unexpected result in the condensation of 2-amino-6-bromopyridine with ethyl 4-chloroacetoacetate: Four dihalo-substituted pyrido[1,2- a]pyrimidin-4-ones as reaction products.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1065, doi. 10.1002/jhet.5570360438

By:

Ferrarini, Pier Luigi;
Mori, Claudio;
Mori, Filippo;
Saccomanni, Giuseppe;
Barontini, Silvia;
Macchia, Marco;
Barili, Pier Luigi;
Hamdan, Mahmoud

Publication type:

Article

Synthesis, crystal structure and spectroscopic studies of 3-hydrazono- and 3-hydroxyiminoquinolin-2-ones.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 881, doi. 10.1002/jhet.5570360409

By:

Mitsos, Christos;
Petrou, John;
Igglessi-Markopoulou, Olga;
Markopoulos, John

Publication type:

Article

Optimization of long-range 1H-15N 2D NMR experiments at natural abundance -- Assignment of the 15N resonances of cryptospirolepine at the submilligram level.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1115, doi. 10.1002/jhet.5570360449

By:

Hadden, Chad E.;
Martin, Gary E.;
Tackie, Albert N.;
Schiff, Paul L.

Publication type:

Article

X-ray crystallographic and NMR structural studies of trans-2,3-dichloro-5-ethyl-2,3-dihydrothieno[2 3- b]pyridine syn-1-oxide reactions of thiophene rings with hypochlorite reagents.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1077, doi. 10.1002/jhet.5570360440

By:

Klemm, Leroy H.;
Weakley, Timothy J. R.;
Yoon, Myungok

Publication type:

Article

Synthesis and fluorescence properties of novel benzo[ a]phenoxazin-5-one derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 895, doi. 10.1002/jhet.5570360411

By:

Long, Jiang;
Wang, Yong-Mei;
Matsuura, Teruo;
Meng, Ji-Ben

Publication type:

Article

8-Methyl-7-substituted-1,6-naphthyridine-3-carboxylic acids as New 6-desfluoroquinolone antibacterials.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 953, doi. 10.1002/jhet.5570360422

By:

Sabatini, Stefano;
Cecchetti, Violetta;
Tabarrini, Oriana;
Fravolini, Arnaldo

Publication type:

Article

A new synthesis of symmetrical 2,5-disubstituted 1,3,4-oxadiazoles.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1029, doi. 10.1002/jhet.5570360433

By:

Bentiss, Fouad;
Lagrenée, Michel

Publication type:

Article

Successive electron transfer reaction of the lithium salt of 5-methyl-5,10-dihydrophenazine anion with 4-nitrophenethyl bromide via 4-nitrostyrene.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 849, doi. 10.1002/jhet.5570360404

By:

Sugimoto, Akira;
Maruyama, Hideyuki;
Takahashi, Wataru;
Mizuno, Kazuhiko;
Uehara, Kaku;
Adachi, Tomohiro

Publication type:

Article

Microwave synthesis and anticonvulsant activity of 2-benzyl-1(2 H)-phthalazinones.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1095, doi. 10.1002/jhet.5570360444

By:

Kornet, Milton J.;
Shackleford, George

Publication type:

Article

A convenient synthesis of 4-trifluoromethyl-4 H-[1,5,2]dioxazines and 4-trifluoromethyl-6 H-[1,2,5]oxadiazines.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 917, doi. 10.1002/jhet.5570360415

By:

Kamitori, Yasuhiro

Publication type:

Article

Pyridazine derivatives. XIX: Functionalization studies at the 5 position in the 6-phenyl-3(2 H)-pyridazinone system.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 985, doi. 10.1002/jhet.5570360426

By:

Sotelo, Eddy;
Raviña, Enrique;
Estevez, Isabel

Publication type:

Article

Hydrobromic acid-dimethyl sulfoxide reagent for dealkylation of 5,10-dialkyl-5,10-dihydrophenazines: Synthesis of 10-alkyl-2(10 H)-phenazinones.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1057, doi. 10.1002/jhet.5570360437

By:

Sugimoto, Akira;
Yoshino, Yasuyuki;
Watanabe, Ryo;
Mizuno, Kazuhiko;
Uehara, Kaku

Publication type:

Article

Investigation of the reaction of N-substituted indolylborates: Palladium catalyzed cross-coupling reactions and intramolecular alkyl migration reactions.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 873, doi. 10.1002/jhet.5570360408

By:

Ishikura, Minoru;
Agata, Isao;
Katagiri, Nobuya

Publication type:

Article

Characterization of a trace by-product of the synthesis of the protease inhibitor tipranavir (PNU-140690).

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1107, doi. 10.1002/jhet.5570360448

By:

Martin, Gary E.;
Robins, Russell H.;
Crow, Frank W.;
Duholke, Wayne K.;
Guido, Jane E.;
Hadden, Chad E.;
Kaluzny, Brian D.;
Thamann, Thomas J.;
Pearlman, Bruce A.

Publication type:

Article

Synthesis and complete 1 H and 13C assignments of thiazolo[3,2- a]quinolinium derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 937, doi. 10.1002/jhet.5570360419

By:

Cox, Osvaldo;
Prieto, José A.;
Ramírez, Lorna;
Rodríguez, Margarita;
Martínez, José R.

Publication type:

Article

Quaternization and dequaternization of pyrazoles in solvent-free conditions: Conventional heating versus microwave irradiation.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 889, doi. 10.1002/jhet.5570360410

By:

Díez-Barra, Enrique;
De La Hoz, Antonio;
Sánchez-Migallón, Ana;
Elguero, José

Publication type:

Article

New indolium and quinolinium dyes sensitive to aqueous halide ions at physiological concentrations.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 949, doi. 10.1002/jhet.5570360421

By:

Geddes, Chris. D.;
Douglas, Peter;
Moore, Christopher P.;
Wear, Trevor J.;
Egerton, Peter L.

Publication type:

Article

6,16-methano-6 H,16 H-[2,4]benzothiazepino[3,4- d][1,3,5]benzoxadiazocine and 6,26:13,19-dimethano-6 H,9 H,13 H,19 H,22 H,26 H-benzo[1″,2″:5,6;4″,5″:5′,6′]bis[1,3]thiazepino[2,3- d:2′,3′- d]bis[1,3,5]-benzoxadiazocine: New heterocyclic systems

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1023, doi. 10.1002/jhet.5570360432

By:

Světlík, Jan;
Liptaj, Tibor

Publication type:

Article

Structure and properties of ethyl (2-benzimidazolyl)cyanoacetimidate.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 841, doi. 10.1002/jhet.5570360403

By:

Yamaguchi, Yoshimi;
Okamoto, Yoshihisa;
Harada, Kazuho

Publication type:

Article

Molecular structure and electronic spectrum of taspine: Semiempirical calculations.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1091, doi. 10.1002/jhet.5570360443

By:

Sato, Tsuguo;
Kataoka, Masahiro

Publication type:

Article

Reactions of arylglyoxals with tetrasulfur tetranitrides (S4N4): Formation of 2-aroyl-5-arylimidazoles and 2-aroyl-5-aryloxazoles.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 911, doi. 10.1002/jhet.5570360414

By:

Kong, Yung Cheol;
Kim, Kyongtae

Publication type:

Article

1,6- and 1,7-naphthyridines. II. Synthesis from acyclic precursors.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 979, doi. 10.1002/jhet.5570360425

By:

Blanco, M. Mercedes;
Perillo, Isabel A.;
Schapira, Celia B.

Publication type:

Article

Structural identification of a novel degradant of the antibiotic pirlimycin formed under thermal stress conditions.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1049, doi. 10.1002/jhet.5570360436

By:

Crow, Frank W.;
Duholke, Wayne K.;
Martin, Gary E.;
Smith, Richard F.;
Thamann, Thomas J.;
Cooper, Anne M.;
Hallberg, John W.;
Blinn, James R.;
Chidestere, Constance G.

Publication type:

Article

1,3,5-tripyridylbenzenes via threefold stille couplings.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 869, doi. 10.1002/jhet.5570360407

By:

Fan, Yun-Hua;
Haseltine, John

Publication type:

Article

A new efficient route to 3-vinylthiophene.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1105, doi. 10.1002/jhet.5570360447

By:

Nicolas, Maël;
Fabre, Bruno;
Pilard, Jean-François;
Simonet, Jacques

Publication type:

Article

Synthesis of 2-aryl-2,3-dihydro-4-styrylpyrimidodiazepines in the reaction of 4,5,6-triaminopyrimidine and 2,4,5,6-tetraaminopyrimidine with diarylidenacetones.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 933, doi. 10.1002/jhet.5570360418

By:

Insuasty, Braulio;
Insuasty, Henry;
Quiroga, Jairo;
Nogueras, Manuel;
Sánchez, Adolfo;
López, M. Dolores

Publication type:

Article

Syntheses and reactions of 2,2′-bisbenzimidazole systems.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1001, doi. 10.1002/jhet.5570360429

By:

Von Glahn, Benita;
Kramer, Walter;
Neidlein, Richard;
Suschitzky, Hans

Publication type:

Article

Electrochemical and electron spin resonance studies of selected benzazolo[3,2- a]quinolinium salts.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 943, doi. 10.1002/jhet.5570360420

By:

Cox, Osvaldo;
Dumas, José A.;
Rivera, Luis A.;
García, Carmelo;
Alegria, Antonio E.

Publication type:

Article

Synthesis of piperidine analogs of 1-(3-chlorophenyl)piperazine, a well known serotonin ligand.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1017, doi. 10.1002/jhet.5570360431

By:

Rádl, Stanislav;
Hezký, Petr;
Taimr, Jan;
Proška, Jan;
Krejčí, Ivan

Publication type:

Article

Haloacetylated enol ethers. 14 [6]. Reaction of β-alkoxyvinyl trifluoromethyl ketones with N-methylhydroxylamine.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 837, doi. 10.1002/jhet.5570360402

By:

Martins, Marcos A. P.;
Flores, Alex F. C.;
Bastos, Giovani P.;
Zanatta, Nilo;
Bonacorso, Helio G.

Publication type:

Article

Synthesis of spiropyrazolines via 1,3-dipolar cycloaddition of nitrilimines.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1087, doi. 10.1002/jhet.5570360442

By:

Jedlovská, Eva;
Fišera, Lubor;
Lévai, Albert;
Tóth, Gábor;
Balázs, Barbara

Publication type:

Article

Direct functionalization of 4,5-dichloropyridazin-6-one.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 905, doi. 10.1002/jhet.5570360413

By:

Chung, Hyun-A;
Kweon, Deok-Heon;
Kang, Young-Jin;
Park, Jung-Won;
Yoon, Yong-Jin

Publication type:

Article

Synthesis and conformational analysis of a chiral fluorinated bilirubin analog lacking carboxyl groups.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 969, doi. 10.1002/jhet.5570360424

By:

Boiadjiev, Stefan E.;
Lightner, David A.

Publication type:

Article

Separation, structural determination and biological evaluation of the thymidylate synthase inhibitor 3,3-Di-(4′-hydroxyphenyl)-6(7)-chloro-1-oxo-1 H,3 H-naphtho[1,8- cd]pyran.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1043, doi. 10.1002/jhet.5570360435

By:

Costi, M. Paola;
Tondi, Donatella;
Pecorari, Piergiorgio;
Rinaldi, Marcella;
Celentano, Giuseppe;
Ghelli, Stefano;
Antolini, Luciano;
Barlocco, Daniela

Publication type:

Article

Photochemistry of mesoionic compounds. Photochemical conversion of 5-azido-1,3-diaryltetrazolium salts to novel tricyclic mesoions with a tetrazolo[1,5- a]benzimidazole skeleton.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 863, doi. 10.1002/jhet.5570360406

By:

Araki, Shuki;
Hattori, Hiromi;
Shimizu, Noriyuki;
Ogawa, Koji;
Yamamura, Hatsuo;
Kawai, Masao

Publication type:

Article

Synthesis of 3-phenoxy-1,3-dihydro-1-isobenzofuranones by palladium-catalyzed carbonylative cyclization of 2-bromobenzaldehyde with phenols.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1101, doi. 10.1002/jhet.5570360446

By:

Cho, Chan Sik;
Baek, Dong Yeol;
Shim, Sang Chul

Publication type:

Article

Polycyclic fused phenanthridines: An alternative approach from benzotriazoles.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 927, doi. 10.1002/jhet.5570360417

By:

Katritzky, Alan R.;
Du, Weihong;
Matsukawa, Yasuhisa;
Ghiviriga, Ion;
Denisenko, Sergey N.

Publication type:

Article

Studies on pyrrolidinones. Synthesis of 1,2,3,5,11,11a-hexahydroindolizino[7,6- b]indole-3,11-dione.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 997, doi. 10.1002/jhet.5570360428

By:

Ebrik, Sahar Al Akoum;
Legrand, Anne;
Rigo, Benoît;
Couturier, Daniel

Publication type:

Article

On the reaction of meldrum's acid with N-trimethylsilylanilines substituted by electron withdrawing groups.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1073, doi. 10.1002/jhet.5570360439

By:

Roche, Sandrine;
Yous, Saïd;
Couturier, Daniel;
Rigo, Benoît

Publication type:

Article

On the reaction of 3-nitro-1,2-phenylenediamine with ethyl acetoacetate. Condensed dihydrodiazepinones.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1013, doi. 10.1002/jhet.5570360430

By:

Puodžiūnaitė, Benedikta;
Kosychova, Lidija;
Stumbrevičiūtė, Zita;
Jančienė, Regina;
Talaikytė, Zita

Publication type:

Article

Synthesis of oxidized 1,2,3-thiadiazines by hydroperoxy-induced ring enlargement of 2-benzenesulfonylaminoisothiazolium salts.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1081, doi. 10.1002/jhet.5570360441

By:

Kolberg, Arne;
Sieler, Joachim;
Schulze, Bärbel

Publication type:

Article

Selenium heterocycles. XLIII. Syntheses of 3,5-Diaryl-1,2,4-thiadiazoles and 3,5-Diaryl-1,2,4-selenadiazoles.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 901, doi. 10.1002/jhet.5570360412

By:

Shafiee, A.;
Ebrahimzadeh, M. A.;
Maleki, A.

Publication type:

Article

Cycloadditions of adamantanethione S-methylide to CC multiple bonds.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 959, doi. 10.1002/jhet.5570360423

By:

Mloston, Grzegorz;
Huisgen, Rolf;
Huber, Helmut;
Stephenson, David S.

Publication type:

Article

Thioamide derivatives of cannabinoids. A study of the influence of the thioamide function on regiochemistry in the synthesis of thioamide cannabinoids from 2,4-dihydroxybenzothioamides.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1033, doi. 10.1002/jhet.5570360434

By:

Sośnicki, Jacek;
Jagodziński, Tadeusz;
Królikowska, Miroslawa

Publication type:

Article

Synthesis of pyrido[3,2- e]pyrrolo[2,1- c][1,2,4]triazines from pyrido[3,2- e][1,2,4]triazine derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 857, doi. 10.1002/jhet.5570360405

By:

Savelli, Francesco;
Boido, Alessandro;
Ciarallo, Giovanni

Publication type:

Article

A convenient method for the synthesis of six-membered heterocyclic enaminones.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 1097, doi. 10.1002/jhet.5570360445

By:

Puebla, Pilar;
Honores, Zoila;
Medarde, Manuel;
Caballero, Esther;
Feliciano, Arturo San;
Morán, Lourdes

Publication type:

Article

Synthesis of 2′-[2-(5-benzyloxyindolyl)]propylamine derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 921, doi. 10.1002/jhet.5570360416

By:

Marco, José L.;
Martin, Gema

Publication type:

Article

Intramolecular oxidative cyclizations in heteroarylthioureas: A versatile pathway to bridgehead heterocyclic systems.

Published in:

Journal of Heterocyclic Chemistry, 1999, v. 36, n. 4, p. 991, doi. 10.1002/jhet.5570360427

By:

Castro, Ana;
Martinez, Ana

Publication type:

Article