Zobrazeno 1 - 10
of 51
pro vyhledávání: '"Gyula Horvath"'
Autor:
Gyula Horváth
Across Europe there is a rapidly changing context for undertaking regional development. In the 20th century, development of the former planned economies (Bulgaria, Czech Republic, Hungary, Poland, Romania and Slovakia), was defined by these countries
Autor:
Gábor Lux, Gyula Horváth
Twenty-five years into transformation, Central and Eastern European regions have undergone substantial socio-economic restructuring, integrating into European and global networks and producing new patterns of regional differentiation and development.
Publikováno v:
Tetrahedron. 60:12059-12066
Intermolecular couplings versus intramolecular ring closures were observed in the reaction of p-tert-butylthiacalix[4]arene and diethylene glycols affording dimers 2 and/or the inherently chiral 1,2-thiacalix[4]crown-3 derivatives 5 under the Mitsuno
Publikováno v:
Journal of Molecular Structure: THEOCHEM. :625-636
By utilizing nucleophilic and electrophilic substitution reactions of 3(2H)-pyridazinones, and application of various types of ring forming reactions, some novel polycyclic fused compounds containing pyrrolo[b]-, pyrido[b]-, pyrrolooxazino[b]- or pyr
Autor:
Peter Lipcsey, Guy L. F. Lemiere, Gábor Krajsovszky, Péter Mátyus, Rómeó D. Andó, Pál Tapolcsányi, Gyoergy Hajos, Gyula Horvath, Bert U. W. Maes, Zsuzsanna Riedl
Publikováno v:
Tetrahedron
Suzuki coupling of 5-chloro-2-methyl-6-phenylpyridazin-3(2H)-one, 6-chloro-1,3-dimethyluracil and 2-chloropyrazine with protected aminoaryl boronic acids resulted in the corresponding pivaloylaminophenyl diazines which were transformed to diazino-fus
Publikováno v:
Journal of Inclusion Phenomena and Macrocyclic Chemistry. 43:145-148
It is shown by extensive NMRinvestigation that hexa-coordinatedZn2+-complexes containing two tridentateiminodiacetamide ligands adopt a solutionconformation with two different kinds ofZn–O bonds possessing a center ofinversion. In contrast, the com
Autor:
Alajos Grün, Gábor Tóth, Barbara Balázs, Gyula Horvath, Laszlo Toke, István Bitter, Viktor Csokai
Publikováno v:
Scopus-Elsevier
Calix[4]arenes capped by di- and triamide bridges on the lower rim were used to synthesize 2,3,4,5 chromogenic molecules supplied with indophenol indicator unit(s). The endo/exo quinoid tautomerism of the chromophore and the mechanism of the colorati
Publikováno v:
Synthetic Communications. 29:3905-3917
The akylation of calix[4]arenes 1 capped by diamide bridges gave fully substituted compounds 5 and 6 of 1,3-alternate conformation. Diesters 6 were cyclized with diamines to afford doubly capped derivatives 7.
Autor:
Gyula Horvath
Publikováno v:
European Urban and Regional Studies. 6:166-177
Autor:
Dalal T. Elmunajjed, Gyula Horvath, M. Hani A. Elgamal, Hesham S. M. Soliman, Helmut Duddeck, Gábor Tóth, András Simon
Publikováno v:
Magnetic Resonance in Chemistry. 36:376-380
A novel triterpenoid saponin, Snatzkein E, was isolated from Arenaria filicaulis Boiss. It possesses a new aglycone and a glucose moiety carrying a sulfate group at C-2′. Its structure and conformational behaviour were investigated by one- and two-