Works matching IS 0022152X AND DT 1990 AND VI 27 AND IP 3

Results: 64

The synthesis of hexahydro-6 H-dibenzo[ b,d]pyrans: Derivatives of 9-Nor-9β-hydroxyhexahydrocannabinol.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 535, doi. 10.1002/jhet.5570270312

By:

Melvin, Lawrence S.;
Bordner, Jon;
Hada, William A.;
Johnson, M. Ross

Publication type:

Article

Reactions of 3-isopropenyltropolones with bromine and N-bromosuccinimide: Formation of 8 H-cyclohepta[ b]furan-8-one derivatives.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 583, doi. 10.1002/jhet.5570270320

By:

Jin, Ren-Hao;
Yin, Bing-Zhu;
Jin, Zhong-Tian;
Imafuku, Kimiaki

Publication type:

Article

Sels de N-alcoxyquinoléinium et de N-alcoxyisoquinoléinium porteurs d'une fonction ester dans leur chaine alcoxyle: Synthèse et réactivité vis-a-vis des ions cyanure.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 627, doi. 10.1002/jhet.5570270328

By:

Sliwa, Henri;
Randria-Raharimanana, Clarisse;
Ouattara, Lassina

Publication type:

Article

Synthesis of fluoromethyl, difluoromethyl and trifluoromethyl analogues of pyrazosulfuron-ethyl as herbicides.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 807, doi. 10.1002/jhet.5570270360

By:

Morimoto, Katsushi;
Makino, Kenzi;
Yamamoto, Susumu;
Sakata, Gozyo

Publication type:

Article

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

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 643, doi. 10.1002/jhet.5570270331

By:

Urleb, Uroš;
Stanovnik, Branko;
Tišler, Miha

Publication type:

Article

Synthesis and properties of conformationally locked 1,3-bisalkyl-7-deazaxanthine 2′-deoxy-d-ribofuranosides.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 479, doi. 10.1002/jhet.5570270302

By:

Seela, F.;
Kretschmer, U.

Publication type:

Article

Synthesis of new derivatives of β-carboline-hydantoin.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 703, doi. 10.1002/jhet.5570270342

By:

Braña, Miguel F.;
Garrido, Mercedes;
Rodriguez, María L. López;
Miguel, Pilar;
Morcillo, M. José;
Riaño, A.

Publication type:

Article

Nitration studies of naphtho[2,3- c][1,2,5]thiadiazole.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 549, doi. 10.1002/jhet.5570270313

By:

Smith, Walter T.;
Patterson, John M.;
Kovelesky, Albert C.

Publication type:

Article

Synthesis of substituted dihydrobenzo[ f]pyrimido[4,5- b]-quinolines as tetracyclic 5-deaza nonclassical folates.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 765, doi. 10.1002/jhet.5570270353

By:

Donkor, Isaac O.;
Gangjee, Aleem;
Duah, Francis K.

Publication type:

Article

Novel bicyclo[2.2.2]lactones from a facile condensation of dibenzoylethylene with arylacetonitriles.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 599, doi. 10.1002/jhet.5570270324

By:

Atfah, M. Adrian;
Al-Arab, Mohammad M.

Publication type:

Article

Polycyclic N-hetero compounds. XXXII.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 759, doi. 10.1002/jhet.5570270352

By:

Hirota, Takashi;
Sasaki, Kenji;
Ieno, Katsuhiro;
Sekiya, Yuhki;
Nakayama, Taiji

Publication type:

Article

Lithiation of 1-benzylimidazole. A hypothesis on the regioselectivity of the electrophilic attacks on the lithiated species.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 673, doi. 10.1002/jhet.5570270335

By:

Moreno-Mañas, M.;
Bassa, J.;
Lladó, N.;
Pleixats, R.

Publication type:

Article

A facile synthesis of novel 1,2-diazepino[3,4- b]quinoxalines by a 1,3-dipolar cycloaddition reaction.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 819, doi. 10.1002/jhet.5570270364

By:

Kim, Ho Sik;
Kurasawa, Yoshihisa;
Yoshii, Chiemi;
Masuyama, Minako;
Takada, Atsushi;
Okamoto, Yoshihisa

Publication type:

Article

Pyrimidines. 65.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 717, doi. 10.1002/jhet.5570270345

By:

Hirota, Kosaku;
Shirahashi, Mitsuomi;
Senda, Shigeo;
Yogo, Motoi

Publication type:

Article

New synthetic method for 4-hydroxyproline.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 507, doi. 10.1002/jhet.5570270306

By:

De Martino, Giovanni;
De Caprariis, Paolo;
Abignente, Enrico;
Rimoli, Maria Grazia

Publication type:

Article

Synthesis of protopine. A novel conversion of the protoberberine alkaloid stylopine to a tetrahydrodibenz[ c,g]azecine derivative.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 623, doi. 10.1002/jhet.5570270327

By:

Kulkarni, B. K.;
Dhar, R. K.;
De Souza, N. J.

Publication type:

Article

Mesoionic 1,2,4-triazolo[4,3- c]quinazolines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 723, doi. 10.1002/jhet.5570270346

By:

Gineinah, Magdy M.;
Ismaiel, Abd El-Kader M.;
El-Kerdawy, Mohamed M.;
Glennon, Richard A.

Publication type:

Article

Synthesis of thiocarbonyl and heterocyclic compounds from 2-methylene-1,3-dithietanes.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 567, doi. 10.1002/jhet.5570270317

By:

Okajima, Nobuyuki;
Okada, Yoshiyuki

Publication type:

Article

Syntheses of 6-Amino-1-(β-D-ribofuranosyl)-1 H-pyrazolo[3,4- d]-1,3-oxazin-4-one, an isostere of oxanosine, and the guanosine analog 6-amino-1-(β-d-ribofuranosyl)-1 H-pyrazolo[3,4- d]pyrimidin-4(5 H)-one via ring closure of pyrazole-5-thioureido intermediates

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 787, doi. 10.1002/jhet.5570270357

By:

Bhattacharya, Birendra K.;
Robins, Roland K.;
Revankar, Ganapathi R.

Publication type:

Article

2-Methylpyridinium salts as 1,4-dinucleophiles. IV. Westphal condensation with 2-alkyl-1-aminoazinium substrates.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 661, doi. 10.1002/jhet.5570270333

By:

Matia, M. Paz;
Navío, J. Luis Garcia;
Vaquero, J. José;
Alvarez-Builla, J.

Publication type:

Article

A facile synthesis of novel triazoloquinoxahnones and triazinoquinoxalinones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 691, doi. 10.1002/jhet.5570270339

By:

Rashed, Nagwa;
El Massry, Abdel Moneim;
El Ashry, El Sayed H.;
Amer, Adel;
Zimmer, Hans

Publication type:

Article

Furopyridines. X.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 637, doi. 10.1002/jhet.5570270330

By:

Shiotani, Shunsaku;
Morita, Hiroyuki

Publication type:

Article

Pyridazines with heteroatom substituents in positions 3 and 5. 6.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 471, doi. 10.1002/jhet.5570270301

By:

Schober, Bernt D.;
Megyeri, Gabor;
Kappe, Thomas

Publication type:

Article

Intramolecular cyclization of 4-acetyl-2,2-diethoxycarbonyl-2,3-dihydro-1-(2-nitrobenzoyl)pyrrole by catalytic reduction.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 699, doi. 10.1002/jhet.5570270341

By:

De Caprariis, P.;
De Martino, G.;
Abignente, E.;
Sacchi, A.

Publication type:

Article

Synthesis of 1-aryl-1,2,3-triazole-4,5-dimethanol-4,5-bis(isopropylcarbamates) as potential antineoplastic agents.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 687, doi. 10.1002/jhet.5570270338

By:

Lalezari, I.;
Gomez, L. A.;
Khorshidi, M.

Publication type:

Article

Synthesis of linear polyquaternary salts derived from 4,4′-Bipyridine.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 595, doi. 10.1002/jhet.5570270323

By:

Summers, Lindsay A.;
Andriopoulos, Nicolaos;
Channon, Anne-Louise

Publication type:

Article

3-(2-Pyrrolidinyl)-2,4-furandione analogs.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 815, doi. 10.1002/jhet.5570270363

By:

Coppola, Gary M.;
Damon, Robert E.

Publication type:

Article

Murexide reaction of caffeine with hydrogen peroxide and hydrochloric acid. II.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 667, doi. 10.1002/jhet.5570270334

By:

Koyama, Matajiro;
Kozuka, Hiroshi

Publication type:

Article

Reactivity of 4-amino-6,7-diphenyl-8 H-pyrazino[2,3- c]-1,2,6-thiadiazine 2,2-dioxide towards methylating agents.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 785, doi. 10.1002/jhet.5570270356

By:

Goya, Pilar;
Páez, Juan Antonio;
Pfleiderer, Wolfgang

Publication type:

Article

Studies on pyrazines. 19.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 503, doi. 10.1002/jhet.5570270305

By:

Sato, Nobuhiro;
Hayakawa, Akemi;
Takeuchi, Ryo

Publication type:

Article

A novel synthetic route to 1,2-dimethyl-5-phenyl-1 H-imidazo[4,5- b]pyridin-7-ol.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 531, doi. 10.1002/jhet.5570270311

By:

Lis, Randall;
Traina, Joseph A.;
Huffman, John C.

Publication type:

Article

A novel preparation of thiazolo[5,4- c]pyridines and the synthesis of some imidazo[4,5- c]pyridines and oxazolo[4,5- c]pyridines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 563, doi. 10.1002/jhet.5570270316

By:

Katner, Allen S.;
Brown, Raymond F.

Publication type:

Article

A simple synthesis of novel 2-pyridones from chalcones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 523, doi. 10.1002/jhet.5570270309

By:

Al-Arab, Mohammad M.

Publication type:

Article

Synthesis of cns potentially active bicyclic and tricyclic derivatives of pyrazolo[1,5- a][1,3]diazepines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 695, doi. 10.1002/jhet.5570270340

By:

Costanzo, Annarella;
Bruni, Fabrizio;
Auzzi, Gabriella;
Selleri, Silvia;
Vettori, Lorenzo Pecori

Publication type:

Article

Pyrolysis of azidopyrazines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 711, doi. 10.1002/jhet.5570270344

By:

Watanabe, Tokuhiro;
Ueda, Ikuko;
Hayakawa, Naomi;
Kondo, Yasuo;
Adachi, Hiroko;
Iwasaki, Akiko;
Kawamata, Shizuko;
Mentori, Fumiko;
Ichikawa, Miyuki;
Yuasa, Kayo;
Ohta, Akihiro;
Kurihara, Teruo;
Miyamae, Hiroshi

Publication type:

Article

Synthesis and NMR (<sup>1</sup>H and <sup>13</sup>C) Studies of azole analogs of diclofurime.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 615, doi. 10.1002/jhet.5570270326

By:

Colombo, Augusto;
Frigola, Jordi;
Parés, Juan;
Andaluz, Blas

Publication type:

Article

Reaction of 1,3,4-oxadiazolones with free L- α-amino acids: A facile synthesis of novel 3,5-disubstituted hydantoins.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 739, doi. 10.1002/jhet.5570270349

By:

Saegusa, Yasuo;
Harada, Shigeo;
Nakamura, Shigeo

Publication type:

Article

Synthesis of 1-acyl-5-pyrazolones and pyrrolidino[2,3- c]pyrazol-3-ones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 683, doi. 10.1002/jhet.5570270337

By:

Cocco, Maria Teresa;
Congiu, Cenzo;
Maccioni, Antonio

Publication type:

Article

The crystal and molecular structure of 5- N-methyl-β-d-arabinofurano[1′,2′:4,5]oxazolo- S-triazine-4,6-dione: Molecular modeling studies on the pattern of alkylation of β-D-arabinofurano[1′,2′:4,5]oxazolo- s-triazin-4-one-6-thione

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 753, doi. 10.1002/jhet.5570270351

By:

Purkayastha, Subhasish;
Cheer, Clair J.;
Panzica, Raymond P.

Publication type:

Article

Synthesis and reactions of 3-thioxo[1,2,4]-triazino[3,2- b]quinazolin-10-ones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 591, doi. 10.1002/jhet.5570270322

By:

Eid, Mohga M.;
El-Zanaty, Ali;
Ibrahim, Yehia A.

Publication type:

Article

An easy two-step synthesis of 1-imidazolylmethyl esters.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 813, doi. 10.1002/jhet.5570270362

By:

Banfi, Aldo;
Benedini, Francesca;
Sala, Alberto

Publication type:

Article

Synthesis of 4-[3-(1 H)-indolyl]-2-[ N-guanidinomethyl]thiazole dihydrochloride.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 519, doi. 10.1002/jhet.5570270308

By:

Zawistoski, Michael P.

Publication type:

Article

Heterocyclization of 2,4-disubstituted thiosemicarbazides with haloketones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 707, doi. 10.1002/jhet.5570270343

By:

Tomita, Yasuhiro;
Kabashima, Shigeru;
Okawara, Tadashi;
Yamasaki, Tetsuo;
Furukawa, Mitsuru

Publication type:

Article

A convenient synthesis of 3-aryl-1,2,4-triazolo[4,3- c]quinazolines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 497, doi. 10.1002/jhet.5570270304

By:

El-Kerdawy, Mohamed M.;
Ismaiel, Abd El-Kader M.;
Gineinah, Magdy M.;
Glennon, Richard A.

Publication type:

Article

Synthesis of 6-substituted-4,5-dihydro-3(2 H)-pyridazinones.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 557, doi. 10.1002/jhet.5570270315

By:

Baraldi, P. G.;
Chiarini, A.;
Leoni, A.;
Manfredini, S.;
Simoni, D.;
Zanirato, V.

Publication type:

Article

Synthesis of pyrazolo[3,4- d]pyrimidine derivatives using ketene dithioacetals.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 775, doi. 10.1002/jhet.5570270355

By:

Tominaga, Yoshinori;
Honkawa, Yasumasa;
Hara, Mayumi;
Hosomi, Akira

Publication type:

Article

Réductions chimique et électrochimique de 5 H-benzopyranno[4,3- d]pyrimidines.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 551, doi. 10.1002/jhet.5570270314

By:

Bellec, Christian;
Bellassoued-Fargeau, Marie-Claude;
Graffe, Bernadette;
Sacquet, Marie-Claude;
Maitte, Pierre

Publication type:

Article

The reaction of 1-( N-phenacylidene)amino-1,2,3-triazoles with diphenylnitrilimine.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 735, doi. 10.1002/jhet.5570270348

By:

Bojilova, A.;
Rodios, N. A.;
Tsoleridis, C. A.;
Alexandrou, N. E.

Publication type:

Article

A convenient synthesis of pyridazine-3,4-dicarboxylic acid by a hetero diels-alder reaction.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 579, doi. 10.1002/jhet.5570270319

By:

Vors, Jean-Pierre

Publication type:

Article

An activated trifluoromethyl group as a new synthon for 4,5-dihydro-1 H-imidazole and 1,4,5,6-tetrahydropyrimidine systems.

Published in:

Journal of Heterocyclic Chemistry, 1990, v. 27, n. 3, p. 803, doi. 10.1002/jhet.5570270359

By:

Wydra, Roman L.;
Patterson, Steven E.;
Strekowski, Lucjan

Publication type:

Article