Zobrazeno 1 - 10
of 49
pro vyhledávání: '"Juraj Bernát"'
Autor:
Karel D. Klika, Eva Balentová, Juraj Bernát, Ján Imrich, Martina Vavrušová, Kalevi Pihlaja, Andreas Koch, Erich Kleinpeter, Alexandra Kelling, Uwe Schilde
Publikováno v:
ARKIVOC, Vol 2006, Iss 16, Pp 93-108 (2007)
Externí odkaz:
https://doaj.org/article/dacee3af548b4f7eb27853c4dacb1862
Publikováno v:
Transportation Research Procedia. 55:1563-1569
The traffic accidents between vehicles and vulnerable road users have fatal consequences in the most cases. Despite the development of active and passive vehicle safety and significant progress in the use of autonomous systems, there is still a need
Autor:
Erich Kleinpeter, Uwe Schilde, Juraj Bernát, Andreas Koch, Alexandra Kelling, Martina Vavrušová, Eva Balentova, Ján Imrich, Karel D. Klika, Kalevi Pihlaja
Publikováno v:
ARKIVOC, Vol 2006, Iss 16, Pp 93-108 (2007)
The reaction of methyl acridin-9-ylthiosemicarbazide under basic conditions with methyl bromoacetate resulted in a 1,3-thiazolin-4-one structure as provided by X-ray crystallography. The structure forced a re-evaluation of the reactant methyl acridin
Autor:
Erich Kleinpeter, Andreas Koch, Juraj Bernát, Karel D. Klika, Kalevi Pihlaja, Martina Vavrušová, Eva Balentova, Ján Imrich
Publikováno v:
Journal of Heterocyclic Chemistry. 43:633-643
The regioselectivities of methyl- and phenylhydrazine with acridin-9-yl isothiocyanate (thus yielding thiosemicarbazides with acridine substituted on the urea-type side) were examined. Methythydrazine regioselectivity was high with the alpha-nitrogen
Publikováno v:
Journal of Heterocyclic Chemistry. 43:739-743
N-Acridin-9-yl methyl N′-acridin-9-yl thiourea spontaneously spiro cyclises via nucleophilic attack of the methylene carbon onto the C-9 of the other acridine moiety. The thiourea, upon reaction with bromoacetonitrile, provided a spiro fused-bicycl
Autor:
Lucia Sucha, Pavol Kristian, Juraj Bernát, Kalevi Pihlaja, Mária Vilková, Ján Imrich, Eva Balentova, Karel D. Klika, Nada Prónayová
Publikováno v:
Journal of Heterocyclic Chemistry. 43:645-656
Acridin-9-yl hydrazine upon treatment with various isothiocyanates (RNCS, R = methyl, allyl, phenyl, p-methoxy phenyl, and p-nitro phenyl) yielded the corresponding thiosemicarbazides with acridine substituted on the carbazide-type side. The alkyl-su
Publikováno v:
Synthetic Communications. 28:4171-4178
A convenient method has been devised for the preparation of the spirodihydro-acridinethiazolines 5a-j by the treatment of thioureas 3a-e with methyl bromoacetate and bromoacetonitrile via non-isolable isothioureas 4a-j and their subsequent cyclizatio
Autor:
Gejza Suchár, Ivan Danihel, Jana Guspanová, Slávka Hočová, Ján Imrich, Anthony Linden, Tatiana Bušová, Igor Chomca, Juraj Bernát, Pavol Kristian
Publikováno v:
Molecules. 1:181-189
The specific physicochemical and spectral properties (dipole moments, NMR and fluorescence spectra) of 2- and 4-substituted 9-isothiocyanatoacridines were studied and compared with the series of m, p-substituted phenyl and benzoyl isothiocyanates. Th
Publikováno v:
Collection of Czechoslovak Chemical Communications. 62:1491-1496
A simple new method has been devised for the preparation of α-isothiocyanatoethers 1a-1f in good yields by reaction of PO(NCS)3 or (PhO)2PONCS with an equimolar mixture of aldehydes and alcohols. The course of nucleophilic additions of methanol, ami
Publikováno v:
Collection of Czechoslovak Chemical Communications. 61:432-436
Reaction of sodium salts of O-methyl-N-substituted iminothiocarbonates with bromoacetyl bromide represents a new general method for preparation of 3-substituted 1,3-thiazolidine-2,4-diones in good yields and high purity. The structure of the synthesi