Zobrazeno 1 - 10
of 190
pro vyhledávání: '"Jacek Gawronski"'
Autor:
Marcin Grzegorz Kwit, Natalia Prusinowska, Robert Cysewski, Beata Warżajtis, Urszula Rychlewska, Jacek Gawronski
Publikováno v:
ARKIVOC, Vol 2017, Iss 2, Pp 492-506 (2016)
Externí odkaz:
https://doaj.org/article/3beb481ab1f84df394b14f80e239bcce
Publikováno v:
The Chemical Record. 19:213-237
A unique combination of structural flexibility, shape persistency and functionality, makes macrocycles and molecular cages as essential molecular entities that have displayed applications that go beyond chemistry. Among macrocycles, the selectively o
Autor:
Jacek Gawronski, Beata Warżajtis, Urszula Rychlewska, Jakub Grajewski, Tomasz Mądry, Marcin Kwit
Publikováno v:
ChemPhysChem. 18:2197-2207
The benzhydryl (diphenylmethyl) group is a molecular propeller that can acts as a chirality reporter when it is introduced nearby the stereogenic center by making the ether bond. Hydrophobic character of the benzhydryl group allows transformation of
Autor:
Natalia Prusinowska, Beata Warżajtis, Marcin Kwit, Urszula Rychlewska, Jacek Gawronski, Robert Cysewski, John A. Joule
Publikováno v:
ARKIVOC, Vol 2017, Iss 2, Pp 492-506 (2016)
Autor:
Jacek Ściebura, Jacek Gawronski, Agnieszka Janiak, Urszula Rychlewska, Jakub Grajewski, Wioletta Bendzińska-Berus
Publikováno v:
Tetrahedron: Asymmetry. 27:811-814
O- and N-trityl derivatives Ph3C∗-X-R∗ of chiral alcohols (X = O) and amines (X = NH) are known to produce strong and stereochemically predictable Cotton effects in the Electronic Circular Dichroism (ECD) spectra due to the preferred M or P helic
Publikováno v:
Chemical communications (Cambridge, England). 55(16)
A giant, chiral square-shaped octaimine macrocycle has been obtained in a controlled manner from readily available and inexpensive substrates: 9,10-diphenylanthracene-based dialdehyde and trans-1,2-diaminocyclohexane. Reduction of the polyimine led t
Publikováno v:
Applied Sciences, Vol 14, Iss 11, p 4791 (2024)
The efficiency and method of regeneration in in vitro culture conditions depend primarily on the plant growth regulators (PGRs) used. Even growth regulators belonging to one group may have different effects, stimulating the process of direct or indir
Externí odkaz:
https://doaj.org/article/d9603936ea9447a0a1e6b57b37339afd
Publikováno v:
Crystal Growth & Design. 16:2779-2788
We demonstrate that covalently bonded chiral organic hexaamine, rigidified by a methylene bridge, assembles into crystalline inclusion compounds and microporous materials. The inclusion of primary alcohol molecules belonging to the homologous series
Publikováno v:
Acta Scientiarum Polonorum: Hortorum Cultus, Vol 22, Iss 6 (2023)
In response to the challenges posed by modern plant micropropagation techniques, a promising technology for growing shoots temporary immersed in nutrient solution (temporary immersion system, TIS) using SETIS™ bioreactors has been developed. In thi
Externí odkaz:
https://doaj.org/article/197282e70a10404b9bb32caba5ee0b5c
Autor:
K. Biniek-Antosiak, Jacek Gawronski, Kamila Piotrowska, Urszula Rychlewska, Mikołaj Zgorzelak, Jakub Grajewski, Agnieszka Janiak
Publikováno v:
Organicbiomolecular chemistry. 16(6)
Novel chiral macrocyclic polyimines with spiro carbon atoms are described. The key feature of the synthesis is the formation of an axially chiral quaternary carbon atom having four constitutionally identical substituents. This is possible either by t