József Jekő : rechercher sur Z-Library

Année:

1999

Fichier:

PDF, 35 KB

1999

ChemInform Abstract: Synthesis and Reactions of a Symmetric Paramagnetic Pyrrolidine Diene.

Tamas Kalai, Maria Balog, Jozsef Jekoe, Kalman Hideg

Journal:

Année:

1999

Fichier:

PDF, 39 KB

1999

ChemInform Abstract: Synthesis of Pyrroline Nitroxide Annulated Carbocycles and Heterocycles.

Tamas Kalai, Jozsef Jeko, Kalman Hideg

Journal:

Année:

2000

Fichier:

PDF, 32 KB

2000

ChemInform Abstract: Synthesis of 2-Substituted Pyrrolidine Nitroxide Radicals.

Szilvia Gadanyi, Tamas Kalai, Jozsef Jeko, Zoltan Berente, Kalman Hideg

Journal:

Année:

2001

Fichier:

PDF, 30 KB

2001

ChemInform Abstract: Synthesis and Study of Double (EPR Active and Fluorescent) Chemosensors in the Presence of Fe3+ Ion.

Olga H. Hankovsky, Tamas Kalai, Eva Hideg, Jozsef Jeko, Kalman Hideg

Journal:

Année:

2001

Fichier:

PDF, 33 KB

2001

Synthesis of α-Azido-2′-hydroxychalcones from Chalcone Dibromides with Azide Ion.

Tamas Patonay, Jozsef Jeko, Eva Riman

Journal:

Année:

2002

Fichier:

PDF, 35 KB

2002

Dimethyldioxirane Oxidation of the Epoxides of (Z)-3-Arylidene-1-thioflavanones.

Albert Levai, Tamas Patonay, Gabor Toth, Jozsef Kovacs, Jozsef Jeko

Journal:

Année:

2002

Fichier:

PDF, 31 KB

2002

Palladium-Catalyzed Coupling Reactions of Paramagnetic Vinyl Halides.

Tamas Kalai, Maria Balog, Jozsef Jeko, Wayne L. Hubbell, Kalman Hideg

Journal:

Albert Levai, Jozsef Jeko

Année:

2003

Fichier:

PDF, 117 KB

2003

Synthesis of 3-Aroyl-4-(3-chromonyl)-2-pyrazolines.

Journal:

Année:

2003

Fichier:

PDF, 96 KB

2003

Synthesis and Study of 2-(2-Thienyl)benzazole Type Fluorophores.

Tamas Kalai, Jozsef Jeko, Erzsebet Osz, Kalman Hideg

Journal:

Année:

2003

Fichier:

PDF, 114 KB

2003

Synthesis of Paramagnetic Carbo- and Heterocycles.

Gyoezoe Kulcsar, Tamas Kalai, Jozsef Jekoe, Kalman Hideg

Journal:

Tamas Patonay, Jozsef Jekoe, Attila Kiss-Szikszai, Albert Levai

Année:

2003

Fichier:

PDF, 207 KB

2003

Synthesis of Racemic and Enantiomerically Enriched α-Oxyfunctionalized Benzocyclanones and Chromanones by Dimethyldioxirane and Dimethyldioxirane/Mn(III) Salen System.

Journal:

Albert Levai, Jozsef Jekoe

Année:

2004

Fichier:

PDF, 49 KB

2004

Regioselective Epoxidation of 3-(3-Oxo-3-arylpropenyl)chromen-4-ones by Dimethyldioxirane.

Journal:

Année:

2004

Fichier:

PDF, 12 KB

2004

Synthesis and Reactions of Paramagnetic Aromatic Aldehydes as Useful Synthetic Building Blocks.

Tamas Kalai, Gyoezoe Kulcsar, Jozsef Jekoe, Erzsebet Oesz, Kalman Hideg

Journal:

Albert Levai, Jozsef Jeko, D. I. Brahmbhatt

Année:

2005

Fichier:

PDF, 95 KB

2005

Dimethyldioxirane Epoxidation of 3-Aryl-1-(3-coumarinyl)propen-1-ones.

Journal:

Année:

2005

Fichier:

PDF, 14 KB

2005

Synthesis of Pyrazolyl-2-pyrazolines by Treatment of 3-(3-Aryl-3-oxopropenyl)chromen-4-ones with Hydrazine and Their Oxidation to Bis(pyrazoles).

Albert Levai, Artur M. S. Silva, Diana C. G. A. Pinto, Jose A. S. Cavaleiro, Ibon Alkorta, Jose Elguero, Jozsef Jekoe

Journal:

Albert Levai, Jozsef Jekoe

Année:

2005

Fichier:

PDF, 15 KB

2005

An Efficient Procedure for the Preparation of 4-Methyl-2-thiocoumarins by the Reaction of 4-Methylcoumarins with Lawesson′s Reagent.

Journal:

Albert Levai, Jozsef Jeko, D. I. Brahmbhatt

Année:

2005

Fichier:

PDF, 13 KB

2005

Synthesis of 1-Substituted 5-Aryl-3-(3-coumarinyl)-2-pyrazolines by the Reaction of 3-Aryl-1-(3-coumarinyl)propen-1-ones with Hydrazines.

Journal:

Albert Levai, Artur M. S. Silva, Clementina M. M. Santos, Jose A. S. Cavaleiro, Jozsef Jeko

Année:

2006

Fichier:

PDF, 18 KB

2006

ChemInform Abstract: Dimethyldioxirane Oxidation of Exocyclic (E,E)-Cinnamylideneketones.

Journal:

Zoltán Jászberényi, Ernő Brücher, József Jekő, Kálmán Hideg, Tamás Kálai, Róbert Király

Année:

2009

Fichier:

PDF, 43 KB

2009

Synthesis, Equilibrium and Kinetic Properties of Gd3+ Complexes of Three DTPA-Bis(Amide) Derivatives Containing Stable Nitroxide Free Radical Substituents

Journal:

European Journal of Inorganic Chemistry

Année:

2003

Langue:

english

Fichier:

PDF, 178 KB

english, 2003

Synthesis of Pyrazolyl-2-pyrazolines by Treatment of 3-(3-Aryl-3-oxopropenyl)chromen-4-ones with Hydrazine and Their Oxidation to Bis(pyrazoles)

Albert Lévai, Artur M. S. Silva, Diana C. G. A. Pinto, José A. S. Cavaleiro, Ibon Alkorta, José Elguero, József Jekö

Journal:

Année:

2004

Langue:

english

Fichier:

PDF, 158 KB

english, 2004

Synthesis of Pyrazoles by Treatment of 3-Benzylchromones, 3-Benzylflavones and Their 4-Thio Analogues with Hydrazine

Albert Lévai, Artur M. S. Silva, José A. S. Cavaleiro, Ibon Alkorta, José Elguero, József Jekő

Journal:

Tamás Patonay, Attila Kiss-Szikszai, Vera M. L. Silva, Artur M. S. Silva, Diana C. G. A. Pinto, José A. S. Cavaleiro, József Jekő

Année:

2006

Langue:

english

Fichier:

PDF, 151 KB

english, 2006

Microwave-Induced Synthesis and Regio- and Stereoselective Epoxidation of 3-Styrylchromones

Journal:

Tamás Patonay, József Jekő, Éva Juhász-Tóth

Année:

2008

Langue:

english

Fichier:

PDF, 232 KB

english, 2008

Synthesis of Highly Substituted 2H-Azirine-2-carboxylates via 3-Azido-4-oxobut-2-enoates

Journal:

Ferenc Kóródi, József Jekõ, Zoltán Szabó

Année:

2008

Langue:

english

Fichier:

PDF, 550 KB

english, 2008

Fused 1,2,4-triazole heterocycles. IV. Synthesis of four new heterocyclic ring systems of [1,2,4]triazolo[1,3]thiazinoquinolines

Journal:

Année:

1997

Fichier:

PDF, 485 KB

1997

A comparative study of the epoxidation of 2-substituted isoflavones by dimethyldioxirane, sodium hypochlorite, and alkaline hydrogen peroxide (weitz-scheffer reaction)

Albert Lévai, Tamás Patonay, Andrea Székely, Erzsébet B. Vass, Waldemar Adam, József Jekö

Journal:

Année:

2000

Fichier:

PDF, 408 KB

2000

Dimethyldioxirane oxidation of the epoxides of (Z)-3-arylidene-1-thioflavanones

Albert LÉvai, TamÁs Patonay, GÁbor TÓth, JÓzsef KovÁcs, JÓzsef Jekö

Journal:

Albert Lévai, József Jekö

Année:

2002

Langue:

english

Fichier:

PDF, 45 KB

english, 2002

Synthesis of 3-aroyl-4-(3-chromonyl)-2-pyrazolines

Journal:

Albert Lévai, József Jekő

Année:

2002

Langue:

english

Fichier:

PDF, 37 KB

english, 2002

Regioselective epoxidation of 3-(3-Oxo-3-arylpropenyl)chromen-4-ones by dimethyldioxirane

Journal:

Albert Lévai, JÓZsef Jekő, D. I. Brahmbhatt

Année:

2004

Langue:

english

Fichier:

PDF, 103 KB

english, 2004

Dimethyldioxirane epoxidation of 3-aryl-1-(3-coumarinyl)propen-1-ones

Journal:

Albert Levai, JÓZsef Jekő

Année:

2004

Langue:

english

Fichier:

PDF, 120 KB

english, 2004

An efficient procedure for the preparation of 4-methyl-2-thiocoumarins by the reaction of 4-methylcoumarins with lawesson's reagent

Journal:

Albert Lévai, Jozsef Jekö, D. I. Brahmbhatt

Année:

2005

Langue:

english

Fichier:

PDF, 50 KB

english, 2005

Synthesis of 1-substituted 5-aryl-3-(3-coumarinyl)-2-pyrazolines by the reaction of 3-aryl-1-(3-coumarinyl)propen-1-ones with hydrazines

Journal:

Albert Lévai, József Jekö

Année:

2005

Langue:

english

Fichier:

PDF, 89 KB

english, 2005

Synthesis of 1-substituted 3,5-diaryl-2-pyrazolines by the reaction of α,β-unsaturated ketones with hydrazines

Journal:

Albert Lévai, József Jekó

Année:

2006

Langue:

english

Fichier:

PDF, 99 KB

english, 2006

Synthesis of 1-substituted 5-aryl-3-styryl-2-pyrazolines and 3-aryl-5-styryl-2-pyrazolines by the reaction of dibenzylideneacetones and E,E-cinnamylideneacetophenones with hydrazines

Journal:

Année:

2006

Langue:

english

Fichier:

PDF, 411 KB

english, 2006

Synthesis of benzo[b][1,4]thiazepines by the reaction of 3-aryl-1-(3-coumarinyl)propen-1-ones with 2-aminothiophenol

Albert Lévai, József Jekő, Tímea Gondos, András Simon, Gábor Tóth

Journal:

Année:

2007

Langue:

english

Fichier:

PDF, 413 KB

english, 2007

Dimethyldioxirane epoxidation of chalcone and isoflavone glycoside acetates

Waldemar Adam, József Jekõ, Albert Lévai, Csaba Nemes, Tamás Patonay

Journal: