A. Ciesielski, S. Haar, G. Paragi, Z. Kupihár, Z. Kele, S. Masiero, C. Fonseca Guerra, F. Matthias Bickelhaupt, G. P. Spada, L. Kovács, P. Samori (2013): Supramolecular H-bonded porous networks at surfaces: exploiting primary and secondary interactions in a bi-component melamine-xanthine system. Phys. Chem. Chem. Phys., 15, accepted. DOI: 10.1039/C3CP50891A
A. Ciesielski, S. Haar, A. Bényei, G. Paragi, C. Fonseca Guerra, F. M. Bickelhaupt, S. Masiero, J. Szolomájer, P. Samori, G. P. Spada, and L. Kovács (2013): Self-assembly of N3-substituted xanthines in the solid state and at the solid-liquid interface. Langmuir, accepted. DOI: 10.1021/la304540b
G. Paragi, Z. Kupihár, C. Fonseca Guerra, F. M. Bickelhaupt and L. Kovács (2013): Supramolecular ring structures of 7-methylguanine: a computational study of its self-assembly and anion binding. Molecules, 18, 225-235. DOI: 10.3390/molecules18010225
G. Paragi, J. Szolomájer, Z. Kupihár, Gy. Batta. Z. Kele, P. Pádár, B. Penke, H. Zijlstra, C. Fonseca Guerra, F. M. Bickelhaupt, L. Kovács (2012): Guanine, xanthine and uric acid assemblies: comparative theoretical and experimental studies. In: L. Spindler, W. Fritzsche (ed.): Guanine quartets: structure and application. Cambridge: Royal Society of Chemistry, pp. 179-193. (ISBN:978-1-84973-695-4). DOI: 10.1039/9781849736954-00179
A. Bokros, A. Bánfi, Z. Kupihár, Z. Kele, T. Z. Illyés, J. Szolomájer and L. Kovács (2012): Electrospray ionization mass spectrometric analysis of highly reactive glycosyl halides. Molecules, 17, 8351-8358. DOI: 10.3390/molecules17078351
S. Roy, M. Olesiak, P. Pádár, H. McCuen, M. H. Caruthers (2012): Reduction of metal ions by boranephosphonate DNA. Org. Biomol. Chem., 10, 9130-9133. DOI: 10.1039/C2OB26661J
D. J. Dellinger, Z. Timár, J. Myerson, A. B. Sierzchala, J. Turner, F. Ferreira, Z. Kupihár, G. Dellinger, K. W. Hill, J. A. Powell, J. R. Sampson, M. H. Caruthers (2011): Streamlined process for the chemical synthesis of RNA using 2'-O-thionocarbamate-protected nucleoside phosphoramidites in the solid phase. J. Am. Chem. Soc., 133, 11540-11556. DOI: 10.1021/ja201561z
G. Ferenc, P. Pádár, J. Szolomájer, N. M. Howarth, L. Kovács (2011): Transition metal ion complexes of N-alkylguanines. Curr. Org. Chem., 15, 2871-2892. DOI: 10.2174/138527211796378451.
Some Recent Publications by Members
of the Laboratory
Papers (2005-)
J. Szolomájer, G. Paragi, G. Batta, C. Fonseca Guerra, F. M. Bickelhaupt, Z. Kele, P. Pádár, Z. Kupihár and L. Kovács (2011): 3-Substituted xanthines as promising candidates for quadruplex formation: computational, synthetic and analytical studies. New J. Chem., 35, 476-482, DOI: 10.1039/C0NJ00612B. Selected as Hot article on 17 December 2010. See also NJC's Meet Our Authors monthly feature.
G. Paragi, L. Kovács, Z. Kupihár, B. Penke, C. Fonseca Guerra, F. M. Bickelhaupt (2011): Neutral or positively charged new purine base tetramer structures: a computational study of xanthine and uric acid derivatives. New J. Chem., 35, 119-126, DOI: 10.1039/C0NJ00613K.
L. Kovács (2009): Cyanogen bromide. An update. In e-EROS Encyclopedia of Reagents for Organic Synthesis, 2nd ed., L. A. Paquette, D. Crich, P. L. Fuchs, G. Molander Eds., John Wiley and Sons, Chichester. DOI: 10.1002/047084289X.rc269.pub2
G. Ferenc, P. Pádár, J. Szolomájer, L. Kovács (2009): N-Alkylated guanine derivatives. Curr. Org. Chem., 13, 1085-1135. pdf file
G. Paragi, E. Szájli, F. Bogár, L. Kovács, C. Fonseca Guerra, and F. M. Bickelhaupt (2008): Hydrogen bonding of 3- and 5-methyl-6-aminouracils with natural DNA bases. New J. Chem., 32, 1981-1987. DOI: 10.1039/b803593h.
Kovács L. (2008): A kémia társadalmi megítélése (Public understanding of chemistry, in Hungarian). Magyar Kémikusok Lapja, 63, 263-267. pdf file
Kovács L. (2008): A brómcián (Cyanogen bromide, in Hungarian). Magyar Kémikusok Lapja, 63, 97-98. html version
Z. Kupihár, Z. Timár, Z. Darula, D. J. Dellinger, and M. H. Caruthers (2008): An electrospray mass spectrometric method for accurate mass determination of highly acid sensitive phosphoramidites. Rapid Commun. Mass Spectrom., 22, 533-540. pdf file
G. Ferenc, P. Pádár, T. Janáky, Z. Szabó, G. K. Tóth, L. Kovács and Z. Kele (2007): Capillary electrophoresis tandem mass spectrometry analysis of bromine-containing charged derivatives of peptides. J. Chromatogr. A, 1159, 119-124. pdf file
P. Pádár, A. Bokros, P. Forgó, Z. Kele, N. M. Howarth and L. Kovács (2006): Single diastereomers of polyhydroxylated 9-oxa-1-azabicyclo[4.2.1]nonanes from intramolecular 1,3-dipolar cycloaddition of omega-unsaturated nitrones. J. Org. Chem. 71, 8669-8672. pdf file
P. Merino, P. Pádár, I. Delso, M. Thirumalaikumar, T. Tejero and L. Kovács (2006): Stereoselective synthesis of pyrrolidinyl glycines from nitrones: complementarity of nucleophilic addition and 1,3-dipolar cycloaddition. Tetrahedron Lett. 47, 5013-5016. pdf file
P. Pádár, M. Hornyák, P. Forgó, Z. Kele, G. Paragi, N. M. Howarth and L. Kovács (2005): Intramolecular 1,3-dipolar cycloaddition of unsaturated nitrones derived from methyl alpha-D-glucopyranoside. Tetrahedron 61, 6816-6823. pdf file
G. Ferenc, P. Forgó, Z. Kele and L. Kovács (2005): A regioselective synthesis of alkyl 2-(guanin-9-yl)acetates as PNA building blocks from 7-(4-nitrobenzyl)guanine derivatives. Collect. Czech. Chem. Commun., 70, 85-102. pdf file
G. Ferenc, Z. Kele and L. Kovács (2005): Determination of N9/N7 isomer ratio of alkyl (guaninyl)acetates by electrospray ionization tandem mass spectrometry. Rapid Commun. Mass Spectrom., 19, 236-240. abstract, pdf file
Z. Kele, G. Ferenc, é. Klement, G. K. Tóth, T. Janáky (2005): Design and performance of a sheathless capillary electrophoresis/mass spectrometry interface by combining fused-silica capillaries with gold-coated nanoelectrospray tips. Rapid Commun. Mass Spectrom., 19, 881-885. pdf file
Selected lectures, posters and proceedings
(2005-)
L. Kovács (2011): Supramolecular structures of nucleic acids. Erasmus Teaching Mobility. University of Turku, Department of Chemistry and Biochemistry. June 15-17, Turku, Finland.
G. Paragi, J. Szolomájer, G. Batta, L. Kovács, Z. Kele, Z. Kupihár, P. Pádár, C. F. Guerra, F. M. Bickelhaupt (2010): Higher-ordered structures based on purines: towards expanding the alphabet - computational, synthetic and analytical studies. Guanosines and quadruplexes. Annual Meeting of COST Action MP0802. London, UK, 14-17 September, 2010. Abstract.
Kovács L., Kupihár Z., Bokros A. (2010): Oxidációs számok és sztöchiometria a szerves kémiában (Oxidation numbers and stochiometry in organic chemistry, in Hungarian). MKE Vegyészkonferencia és 53. Magyar Spektrokémiai Vándorgyûlés. Hajdúszoboszló, 2010 június 30-július 2. Pdf file of the lecture.
G. Paragi, L. Kovács, Z. Kupihár, B. Penke, C. F. Guerra, F. M. Bickelhaupt (2010): Neutral or positively charged new purine base tetramer structures: a computational study of xanthine and uric acid derivatives. Symposium on Nucleic Acid Chemisty, Structure and Interaction, Slovenian NMR Centre, Nova Gorica, Slovenia, May 29-31, 2010, p. 61. Abstract
J. Szolomájer, G. Paragi, Z. Kele, P. Pádár, Z. Kupihár, L. Kovács (2010): 3-Substituted xanthines as promising candidates for tetrad formation: synthetic, analytical and computational studies. Symposium on Nucleic Acid Chemisty, Structure and Interaction, Slovenian NMR Centre, Nova Gorica, Slovenia, May 29-31, 2010, p. 62. Abstract
L. Kovács (2008): The use of renewable feedstock in organic synthesis (Chemical Biology Course, Seili, Finland, 26 August, 2008). Pdf file of the lecture.
L. Kovács (2008): Peptide nucleic acids: synthetic and analytical studies (Chemical Biology Course, Seili, Finland, 28 August, 2008). Pdf file of the lecture.
L. Kovács (2005): A minimalist introduction to (bio)organic chemistry (TRIoH Symposium, 23 March 2005, Frankfurt). Pdf file of the lecture.
Always under construction. © Lajos Kovács, 1999-