Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Przemysław, Kalicki"'
Autor:
Paulina Zielinska, Magdalena Zimnicka, Anna Troć, Przemysław Kalicki, Jolanta Solecka, Anna Laskowska, Zofia Urbanczyk-Lipkowska, Piotr Polcyn
Publikováno v:
Molecules, Vol 18, Iss 6, Pp 7120-7144 (2013)
A series of new peptide dendrimers with amphiphilic surface, designed around a dendronized ornithine (Orn) core were synthesized and characterized by ESI-MS, 1H-, 13C- NMR, and CD spectrometry. An improved antimicrobial potency against S. aureus and
Externí odkaz:
https://doaj.org/article/5bdc3e9047f044499d3041ce7091a410
Autor:
Ewa Wolińska, Zbigniew Karczmarzyk, Andrzej Rykowski, Zofia Urbańczyk-Lipkowska, Przemysław Kalicki
Publikováno v:
Acta Crystallographica Section E, Vol 68, Iss 6, Pp o1938-o1938 (2012)
The title compound, C19H17ClN4, was obtained from the reaction of 3-chloro-5,6-diphenyl-1,2,4-triazine with isobutyronitrile in the presence of lithium diisopropylamide as an unexpected product of covalent addition of isobutyronitrile carbanion to th
Externí odkaz:
https://doaj.org/article/6558c96f0ea4484fb9ed718c805ea1e1
Autor:
Waldemar Wysocki, Dariusz Matosiuk, Marzena Rządkowska, Zbigniew Karczmarzyk, Zofia Urbańczyk-Lipkowska, Przemysław Kalicki
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 11, Pp o2742-o2743 (2010)
The title compound, C19H15Cl2N3O2, was obtained by a one-step cyclocondensation of 2-amino-1-(4-chlorophenyl)imidazoline with diethyl (2-chlorobenzyl)malonate under basic conditions. In the crystalline state, the molecule exists as the 7-hydroxy-5-ox
Externí odkaz:
https://doaj.org/article/cef0527d8f7743e398eb6cb69bfcd3bd
Autor:
Zbigniew Karczmarzyk, Teodozja M. Lipińska, Waldemar Wysocki, Zofia Urbańczyk-Lipkowska, Przemysław Kalicki
Publikováno v:
Acta Crystallographica Section E, Vol 66, Iss 4, Pp o806-o807 (2010)
In the title compound, C9H11NO·0.5H2O, the asymmetric unit contains two similar molecules of 5,6,7,8-tetrahydroquinoline 1-oxide and one water molecule. The water molecule links the two O atoms of both independent N-oxides into dimers via O—H...O
Externí odkaz:
https://doaj.org/article/cc589105b54d4e059a4ee2164a6420e8
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 8, Pp o1772-o1772 (2009)
The molecule of the title compound, C12H14N8S2, has an N—N gauche conformation. The triazine rings are nearly coplanar with respect to the imide bonds [C—C—C—N torsion angles = −15.3 (3) and −15.8 (3)°] and they are twisted by 77.88 (7)
Externí odkaz:
https://doaj.org/article/f68e662b35cf4aa5ac1a83b24e172773
Synthesis and optical properties of some 3,4-(ethylenedioxythiophen-2-yl)-1,2,4-triazine derivatives
Autor:
Michał Gil, Waldemar Wysocki, Agnieszka Woźna, Monika Świętochowska, Zbigniew Karczmarzyk, Przemysław Kalicki, Zofia Urbańczyk-Lipkowska, Danuta Branowska, Ewa Olender, Iwona Cichosz
Publikováno v:
Tetrahedron. 73:411-417
A series of a hybrid oligomers with different combinations of thiophene, EDOT and 1,2,4-triazine rings have been synthesized and characterized. The synthesis of these alternated 1,2,4-triazine derivatives is reported using a straightforward palladium
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::05f3114d999f5245d167d54ae36d4bb6
https://doi.org/10.1016/j.tet.2016.12.030
https://doi.org/10.1016/j.tet.2016.12.030
Autor:
Zofia Urbańczyk-Lipkowska, Danuta Branowska, Waldemar Wysocki, Przemysław Kalicki, Zbigniew Karczmarzyk, Barbara Miroslaw, Ilona Bancerz, Przemyslaw Ledwon, Mieczyslaw Lapkowski, Ewa Olender
Publikováno v:
Electrochimica Acta. 214:19-30
Two series of 1,2,4-triazine and 5,5′-bi-1,2,4-triazine-based oligothiophene derivatives have been developed and their molecular structures were confirmed by X-ray analysis. Electrochemical, spectroelectrochemical and spectral measurement were used
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::a443ec7a4fa240f939c05cea5a16e602
https://doi.org/10.1016/j.electacta.2016.08.019
https://doi.org/10.1016/j.electacta.2016.08.019
Publikováno v:
Tetrahedron: Asymmetry. 26:1083-1094
A series of novel epimeric arylmethanamine ligands were synthesized from l -proline. Both epimers were subsequently examined in the copper(II)-catalyzed asymmetric Henry reaction. Product yield and stereoselectivity up to 92% ee indicated that the (S
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::8a9d2ab1622333f09a2ec17a25985c96
https://doi.org/10.1016/j.tetasy.2015.08.002
https://doi.org/10.1016/j.tetasy.2015.08.002
Autor:
Ryszard Lazny, Przemysław Kalicki, Katarzyna Sidorowicz, Karol Wolosewicz, Zofia Urbańczyk-Lipkowska, Artur Ratkiewicz, Aneta Nodzewska
Publikováno v:
Tetrahedron. 71:5148-5158
Isomerisation of α-alkyl (Me, n-Pr, i-Pr, Bn) N,N-dimethylhydrazone derivatives of 8-methyl-8-azabicyclo-[3.2.1]octane (tropane) gave two isomers (E,exo Z,exo) while of 9-azabicyclo[3.3.1]nonane (granatane) three isomers (E,exo Z,exo and E,endo), ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::3e60b197811cfae85212080eee1713f3
https://doi.org/10.1016/j.tet.2015.05.018
https://doi.org/10.1016/j.tet.2015.05.018
Autor:
Marzena Rządkowska, Zbigniew Karczmarzyk, Zofia Urbańczyk-Lipkowska, Elżbieta Szacoń, Dariusz Matosiuk, Waldemar Wysocki, Przemysław Kalicki
Publikováno v:
Journal of Molecular Structure. 1094:137-147
The structural investigations of a series of new bioactive imidazo[1,2-a]pyrimidines 1–6 were undertaken using IR, 1H and 13C NMR spectroscopic analysis, X-ray crystal structure determinations and theoretical calculations. The compounds 1–6 were
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f59fec1912853fe7bad8487e1c9e14a0
https://doi.org/10.1016/j.molstruc.2015.04.005
https://doi.org/10.1016/j.molstruc.2015.04.005