Zobrazeno 1 - 10
of 10
pro vyhledávání: '"Kinga Juhász"'
Autor:
Diána Balogh-Weiser, Laurence Pirault-Roy, Krisztina Lévay, Zoltán Hell, László Hegedűs, Kinga Juhász
Publikováno v:
Reaction Kinetics, Mechanisms and Catalysis. 133:687-698
Nickel and lanthanum on MgO or MgO–Al2O3catalysts were prepared and characterized. The applicability of the catalysts was studied in the liquid-phase hydrogenation of benzonitrile. A La/MgO catalyst showed surprisingly high activity and selectivity
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::925e0020e3503a397b6c559e4229a6a6
https://doi.org/10.1007/s11144-021-02028-2
https://doi.org/10.1007/s11144-021-02028-2
Publikováno v:
Catalysis Letters. 152:1100-1108
Copper(II) on 4 Å molecular sieve was found to be an efficient heterogeneous catalyst in the addition of different H-phosphinates and secondary phosphine oxides to phenylacetylene. All hydrophosphinylation reactions were completely regioselective, a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d052dbead7c8571c239723fc1efbed51
https://doi.org/10.1007/s10562-021-03694-6
https://doi.org/10.1007/s10562-021-03694-6
Publikováno v:
Synthesis. 53:983-1002
Transition-metal-catalyzed cross-coupling of organohalides, ethers, sulfides, amines, and alcohols (and derivatives thereof) with Grignard reagents, known as the Kumada–Tamao–Corriu reaction, can be used to prepare important intermediates in th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f901a1c69fade95a86015854900d6a15
https://doi.org/10.1055/s-0040-1705986
https://doi.org/10.1055/s-0040-1705986
Publikováno v:
Synthesis. 53:279-295
In the last two decades, considerable attention has been devoted to the use of 4Å molecular sieves (MS 4A) in organic chemical syntheses. Initially, they were applied as drying agents in order to dry gases, solvents and liquid reagents. Nowadays, th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d0785b1005806eb6a1278d28547bca76
https://doi.org/10.1055/s-0040-1706535
https://doi.org/10.1055/s-0040-1706535
Autor:
Zoltán Hell, Kinga Juhász
Publikováno v:
Catalysis Letters. 150:3335-3341
Abstract Pd2+ on 4 Å molecular sieves support has been prepared and investigated. The catalyst has successfully been used in the reaction of acyl chlorides and terminal alkynes yielding ynones. The catalyst can be reused without significant loss of
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0cabb6b1e03c2d7733f3d7af5092f4f1
https://doi.org/10.1007/s10562-020-03235-7
https://doi.org/10.1007/s10562-020-03235-7
Autor:
Zoltán Hell, Kinga Juhász
Publikováno v:
Tetrahedron Letters. 59:3136-3138
Copper(II) on a 4 A molecular sieve support catalyses the chemoselective addition of alkyl- and arylmagnesium halides to chalcones. Only the 1,4-addition products were obtained in high yields.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::cde289145484aa954c0105617ec80926
https://doi.org/10.1016/j.tetlet.2018.07.016
https://doi.org/10.1016/j.tetlet.2018.07.016
Autor:
Kinga Juhász, Zoltán Hell
Publikováno v:
Periodica Polytechnica Chemical Engineering.
The conjugate addition in the presence of a catalytic amount of copper is a widely used method for the formation of a C-C bond. However, mostly homogeneous catalysts and/or homogeneous ligands are used in these type of reactions. Previously we report
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3bafc35333703f447bb106af373df5f2
https://doi.org/10.3311/ppch.13914
https://doi.org/10.3311/ppch.13914
Autor:
Mihály Kállay, Elemér Fogassy, Dávid Mester, Mátyás Czugler, Miklós Kubinyi, Katalin E. Kövér, István Timári, Péter Bagi, Péter Pongrácz, Konstantin Karaghiosoff, László Kollár, László Drahos, Kinga Juhász, Tibor Szilvási, György Keglevich
Publikováno v:
Journal of Organometallic Chemistry. 797:140-152
A 1-isopropyl-3-phospholene 1-oxide was prepared and the two enantiomers were isolated from the racemate by resolution using optically active TADDOL derivatives or the acidic Ca2+ salts of (−)-O,O-diaroyl-(2R,3R)-tartaric acids. The single crystal
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::502b971ca17b4842680c0d183f9c3a23
https://doi.org/10.1016/j.jorganchem.2015.08.013
https://doi.org/10.1016/j.jorganchem.2015.08.013
Publikováno v:
Phosphorus, Sulfur, and Silicon and the Related Elements. 191:1459-1461
Resolution methods involving the formation of diastereomeric complexes were developed for the separation of cyclic P-stereogenic phosphine oxides and phosphinates. These resolution methods are of m...
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6927ac4e4e7873bbc0025ceafafdd512
https://doi.org/10.1080/10426507.2016.1212039
https://doi.org/10.1080/10426507.2016.1212039
Autor:
Kinga Juhász, Elemér Fogassy, Dóra Hessz, Péter Bagi, György Keglevich, Mihály Kállay, Miklós Kubinyi
Publikováno v:
Heteroatom Chemistry. 29:e21411
The resolution of 1-isopentyl-3-methyl-3-phospholene 1-oxide via the formation of diastereomeric complexes using TADDOL derivatives or the Ca2+-salts of tartaric acid derivatives was studied. Both enantiomers of the 1-isopentyl-3-phospholene oxide we
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::5950e3134c8fab87b1210648a37f0260
https://doi.org/10.1002/hc.21411
https://doi.org/10.1002/hc.21411