Works matching IS 0022152X AND DT 1998 AND VI 35 AND IP 2

Results: 39

A novel synthesis of quinolinium salts via benzotriazole methodology.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 467, doi. 10.1002/jhet.5570350234

By:

Katritzky, Alan R.;
Semenzin, Delphine;
Yang, Baozhen;
Pleynet, David P. M.

Publication type:

Article

Synthesis and central nervous system stimulant activity of camphor-1,2,4-benzotriazines fused with five and six-membered heterocycles.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 293, doi. 10.1002/jhet.5570350205

By:

Nagai, Shin-Ichi;
Ueda, Taisei;
Takamura, Masatoshi;
Nagatsu, Akito;
Murakami, Nobutoshi;
Sakakibara, Jinsaku

Publication type:

Article

The birch reduction of heterocyclic compounds. III. Birch reduction-elimination reaction of 2- and 3-furancarboxylic acid derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 461, doi. 10.1002/jhet.5570350233

By:

Ohta, Yasuo;
Onoshima, Man;
Tamura, Masumi;
Tanaka, Rika;
Morimoto, Yoshiki;
Kinoshita, Takamasa;
Yoshihara, Kazuo

Publication type:

Article

An electron-impact mass spectral (EIMS) study of N-1 and C-6 carboxyalkyl- and alkoxycarbonylalkyl-substituted derivatives of uracil.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 349, doi. 10.1002/jhet.5570350216

By:

Wyrzykiewicz, E.;
Kazimierczuk, Z.

Publication type:

Article

Synthesis of several deoxy analogues of pancratistatin.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 343, doi. 10.1002/jhet.5570350215

By:

Balázs, LÁSzlÓ;
Kádas, István;
Tõke, László

Publication type:

Article

Syntheses of 2-spiroindoles and pyrrolof[1,2- a]indoles.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 421, doi. 10.1002/jhet.5570350227

By:

Malapel-Andrieu, B.;
Mérour, J.-Y.

Publication type:

Article

Synthesis and central nervous system stimulant activity of 5,8-methanoquinazolines fused with 1,2,4-triazole, tetrazoleand 1,2,4-triazine.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 325, doi. 10.1002/jhet.5570350211

By:

Nagai, Shin-Icbi;
Ueda, Taisei;
Sugiura, Satoe;
Nagatsu, Akito;
Murakami, Nobutoshi;
Sakakibara, Jinsaku;
Fujita, Michiko;
Hotta, Yoshiki

Publication type:

Article

Synthesis and reactions of 1,3-dicarbonyl-substituted troponoids: Conversion to tropolones having an isoxazole or a pyrazole ring.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 389, doi. 10.1002/jhet.5570350222

By:

Nasu, Tomoyuki;
Tagawa, Tomoko;
Imafuku, Kimiaki

Publication type:

Article

Synthesis of new proton-ionizable dibenzocrown ethers.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 285, doi. 10.1002/jhet.5570350204

By:

Kim, Jong Seung;
Bartsch, Richard A.

Publication type:

Article

Synthesis and debenzoylation products of two perbenzoylated 2-substituted 5- D-galactosyl-1,3,4-oxadiazoles.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 481, doi. 10.1002/jhet.5570350238

By:

Cannizzaro, Carina E.;
Thiel, Inge M. E.;
D'Accorso, Norma B.

Publication type:

Article

Research on photochemical and thermochemical reactions between indole and quinones in the absence of solvent.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 313, doi. 10.1002/jhet.5570350209

By:

Wang, Yong-Mei;
Wen, Zhong;
Chen, Xiao-Min;
Du, Da-Ming;
Matsuura, Teruo;
Meng, Ji-Ben

Publication type:

Article

Synthesis of pyrido[2,3- d]pyrimidines from aminopyrimidinecarbaldehydes.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 413, doi. 10.1002/jhet.5570350226

By:

Perandones, Francisco;
Soto, José L.

Publication type:

Article

Diastereoselective synthesis of cis-3- and 3,5-alkylpyrrolizidines.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 371, doi. 10.1002/jhet.5570350219

By:

Provot, Olivier;
Célérier, Jean-Pierre;
Lhommet, GÉRard

Publication type:

Article

Nucleophilic substitutions of 2-chloronaphtho[2,3- b]furan-4,9-dione with amines.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 301, doi. 10.1002/jhet.5570350207

By:

Koyanagi, Jyunichi;
Ogawa, Masayuki;
Yamamoto, Katsumi;
Nakayama, Kouji;
Tanaka, Akira

Publication type:

Article

Substitution reactions of phenanthro[9,10- d]triazole with benzyl chlorides.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 365, doi. 10.1002/jhet.5570350218

By:

Yasuda, Goro;
Kimoto, Hiroshi

Publication type:

Article

Cyclization reactions of 2-(2-chloro-4-nitrophenylsulfonyl)-1-(2-thienyl)ethanone.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 477, doi. 10.1002/jhet.5570350237

By:

Fan, Ai-Long;
Cao, Song;
Xu, Jing-Hua;
Zhang, Zheng

Publication type:

Article

Synthesis of symmetrical 2,2′,4,4′-tetrasubstituted[4,4′-bioxazole]-5,5′(4 H,4′ H)-diones and their reactions with some nucleophiles.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 317, doi. 10.1002/jhet.5570350210

By:

Andersen, Kenneth K.;
Gloster, Daniel F.;
Bray, Diana D.;
Shoja, Massud;
Kjær, Anders

Publication type:

Article

Conversion of 3-hydroxy-1,2,3,4-tetrahydroquinoline-2,4-diones to 2,3a,4,5-tetrahydrofuro[2,3- c]quinoline-2,4-diones via an intramolecular wittig reaction.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 307, doi. 10.1002/jhet.5570350208

By:

Klásek, Antonín;
Kafka, Stanislav

Publication type:

Article

The synthesis of hexahydrooxoepithiopyridinedicarboximides by the reaction of thioamides with N-substituted maleimides.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 437, doi. 10.1002/jhet.5570350229

By:

Takido, Toshio;
Tamura, Sachiko;
Sato, Kenji;
Kamijo, Haruo;
Nakazawa, Toshikatsu;
Seno, Manabu;
Hata, Tadashi

Publication type:

Article

New isomeric N-substituted hydrazones of 2-, 3-and 4-pyridinecarboxaldehydes.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 381, doi. 10.1002/jhet.5570350221

By:

Wyrzykiewicz, Elżbieta;
Prukała, Dorota

Publication type:

Article

A novel synthesis of 14-(hydroxymethylalkyl) derivatives of dibenzoxanthenes and 3,3-dimethyl-4-(2-hydroxy-1-naphthyl)benzo[ f]chroman.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 457, doi. 10.1002/jhet.5570350232

By:

Sirkecioǧlu, Okan;
Talinli, Naciye;
Akar, Ahmet

Publication type:

Article

A study on ester formylhydrazones.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 377, doi. 10.1002/jhet.5570350220

By:

Ikizler, Aykut A.;
Yildirim, Nuri

Publication type:

Article

Haloacetylated enol ethers. 9. Synthesis of 4-trifluoromethyl-2-methyl[phenyl]pyrimidines and tetrahydro derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 451, doi. 10.1002/jhet.5570350231

By:

Zanatta, Nilo;
Fagundes, Madelon B.;
Ellensohn, Ricardo;
Marques, Marcelo;
Bonacorso, Helio G.;
Martins, Marcos A. P.

Publication type:

Article

Conformational behavior on 2,2,3-trisubstituted 1,2,3,4-tetrahydroquinoline alkaloids, virantmycin, benzastatins, and their congeners, evaluated by semi-empirical molecular orbital calculations.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 279, doi. 10.1002/jhet.5570350203

By:

Morimoto, Yoshiki

Publication type:

Article

Reaction of N<sup>1</sup>, N<sup>2</sup>-diarylacetamidines with (2,4,7-trinitro-9 H-fluoren-9-ylidene)propanedinitriles.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 339, doi. 10.1002/jhet.5570350214

By:

Gomaa, Mohsen Abdel-Motaal;
Döpp, Dietrich

Publication type:

Article

Reaction of 5-amino-1-aryl-3-methylpyrazoles with benzylidene derivatives of meldrum's acid: Synthesis and characterization of pyrazolo[3,4- b]pyridinones.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 409, doi. 10.1002/jhet.5570350225

By:

Quiroga, Jairo;
Hormaza, Angelina;
Insuasty, Braulio;
Márquez, Manuel

Publication type:

Article

Improved preparation of N-propargyl-2-(5-benzyloxyindolyl)methylamine [a].

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 475, doi. 10.1002/jhet.5570350236

By:

Marco, José L.

Publication type:

Article

Reaction of 5-aminopyrazoles with β-dimethylaminopropiophenones. Synthesis of new pyrazolo[3,4- b]pyridines.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 333, doi. 10.1002/jhet.5570350213

By:

Quiroga, J.;
Insuasty, B.;
Cruz, S.;
Hernandez, P.;
Bolaños, A.;
Moreno, R.;
Hormaza, Angelina;
de Almeida, Regina H. S.

Publication type:

Article

Preparation of tetrazoles from organic nitriles and sodium azide in micellar media.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 405, doi. 10.1002/jhet.5570350224

By:

Jursic, Branko S.;
Leblanc, Blaise W.

Publication type:

Article

Fused imidazoacridines: Synthesis of 1,3-dihydroimidazo[4,5- b]-acridin-2-one and 1,3-dihydroimidazo[4,5- a]acridin-2-one.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 471, doi. 10.1002/jhet.5570350235

By:

Morel, S.;
Boyer, G.;
Galy, J.-P.

Publication type:

Article

The synthesis and structure of a new type of aromatic heterocyclic macrocycle. IV. Synthesis of a 1,3,4-oxadiazole-containing azomacrocycle.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 275, doi. 10.1002/jhet.5570350202

By:

Zheng, Shengping;
Wang, Shu;
Hua, Wenting

Publication type:

Article

Novel solid-state synthesis of dimeric 4-aryl-1,4-dihydropyridines.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 359, doi. 10.1002/jhet.5570350217

By:

Hilgeroth, Andreas;
Heinemann, Frank W.

Publication type:

Article

Metalation of t-butyl sulfoxides, sulfones and sulfonamides of pyridazine and pyrazine. Metalation of diazines. XX.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 429, doi. 10.1002/jhet.5570350228

By:

Turck, Alain;
Plé, Nelly;
Pollet, Paméla;
Quéguiner, Guy

Publication type:

Article

Synthesis of spiro[2 H-indole-2,1′-1 H-isoindole]-3,3′-diones, spiro[1 H-isobenzofuran-1,2′-2 H-indole]-3,3′-diones and spiro[benzofuran-2,1′-isobenzofuran]-3,3′-diones via transannular reactions of eight membered ring intermediates

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 397, doi. 10.1002/jhet.5570350223

By:

Bullington, James L.;
Dodd, John H.

Publication type:

Article

2,4,6-trichloropyrimidine. Reaction with 4-substituted phenolate ions.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 269, doi. 10.1002/jhet.5570350201

By:

Delia, Thomas J.;
Nagarajan, A.

Publication type:

Article

Synthesis of nonsymmetrically 3,4-disubstituted 1,2,5-thiadiazole dioxides.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 297, doi. 10.1002/jhet.5570350206

By:

Martinez, Ana;
Castro, Ana;
Arán, Vicente J.;
Cardelús, Ignacio;
Llenas, Jesús;
Palacios, José M.

Publication type:

Article

Synthesis of (±)-methylenolactocin and (±)- trans cognac lactone.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 485, doi. 10.1002/jhet.5570350239

By:

Ohta, Yasuo;
Okamoto, Takashi;
Tamura, Masumi;
Doe, Matsumi;
Morimoto, Yoshiki;
Kinoshita, Takamasa;
Yoshihara, Kazuo

Publication type:

Article

Synthesis of 4 H-1,3,4-oxadiazino[5,6- b]quinoxalines from 2-substituted quinoxaline 4-oxides.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 445, doi. 10.1002/jhet.5570350230

By:

Kim, Ho Sik;
Kim, Eun Ah;
Jeong, Geuk;
Park, Yong Tae;
Hong, Young Seuk;
Okamoto, Yoshihisa;
Kurasawa, Yoshihisa

Publication type:

Article

Synthesis and central nervous system stimulant activity of 5,8-methanoquinazolines fused with imidazole, thiadiazole, pyrimidine and 1,3,5-triazine.

Published in:

Journal of Heterocyclic Chemistry, 1998, v. 35, n. 2, p. 329, doi. 10.1002/jhet.5570350212

By:

Nagai, Sbin-Ichi;
Ueda, Taisei;
Nagatsu, Akito;
Nakaoka, Keiko;
Murakami, Nobutoshi;
Sakakibara, Jinsaku;
Fujita, Michiko;
Hotta, Yoshihiro

Publication type:

Article