Zobrazeno 1 - 10
of 34
pro vyhledávání: '"Eugenijus Butkus"'
Publikováno v:
Molecules, Vol 19, Iss 7, Pp 9893-9906 (2014)
The chiroptical properties of enantiomerically pure bicyclo[3.3.1]nona-2,6-diene-2,6-dicarbonitrile and related acids were studied by circular dichroism spectroscopy and theoretical computations. A consideration of the molecular structure of the synt
Externí odkaz:
https://doaj.org/article/1e84cbf282d94e76b62d4a12df594cc4
Publikováno v:
Organometallics. 38:2647-2653
The cyclic supramolecular coordination constructs were synthesized via metal-directed self-assembly from cis-protected Pd(II) precursor and chiral and racemic C2 symmetric V-shaped bicyclo[3.3.1]no...
Publikováno v:
Acta Crystallographica Section E, Vol 65, Iss 6, Pp o1357-o1357 (2009)
The title compound, C13H16O2, is a chiral bicyclic structure composed of two fused cyclohexane rings possessing both boat and chair conformations. The molecules are packed in enantiopure columns which are pairwise linked forming an overall racemic so
Externí odkaz:
https://doaj.org/article/eba485083a2c4af4a7508269c5fa01a0
Publikováno v:
Synlett. 28:2790-2794
Star-shaped aromatic derivatives of bicyclo[3.3.1]nonane with predetermined chirality were synthesized by employing the Suzuki and Sonogashira reactions. The C 3-symmetric trifunctional aromatic derivatives based on the lateral bicyclo[3.3.1]nonene m
Autor:
Sigitas Stončius, Eugenijus Butkus
Publikováno v:
Tetrahedron Letters. 61:152302
Chiral methanocyclooctadiindoles, featuring an indole-annulated bicyclo[3.3.1]nonane framework, were obtained from the corresponding bicyclo[3.3.1]nonane 2,6-, 2,7- and 3,7-diketones via the Fischer indolization reaction. The chiroptical properties o
Autor:
Dovilė Račkauskaitė, Kenneth Wärnmark, Qixun Shi, Karl-Erik Bergquist, Anders Sundin, Eugenijus Butkus, Edvinas Orentas
Publikováno v:
Journal of the American Chemical Society. 137:10536-10546
The formation of an unprecedented decameric capsule in carbon disulfide, held together by the combination of double and triple hydrogen bonds between isocytosine units embedded in an enantiomerically pure bicyclic framework is reported. The aggregati
Autor:
Jilai Li, Qixun Shi, Kenneth Wärnmark, Karl-Erik Bergquist, Mikael Lund, Edvinas Orentas, Eugenijus Butkus, Rui-Ping Huo, Robert Vácha, Anders Sundin
Publikováno v:
Journal of the American Chemical Society. 135:15263-15268
Synthesis, solvent-, and guest-controlled self-assembly, and self-sorting of new hydrogen-bonded chiral cavity receptors are reported. The design of the cavity is based on the cyclic self-aggregation of monomers containing the 4H-bonding ureidopyrimi
Autor:
Eugenijus Butkus, Nikoletta B. Báthori, Ola F. Wendt, Marvin Johnson, Kenneth Wärnmark, Edvinas Orentas, Carl-Johan Wallentin, Lars Öhrström
Publikováno v:
CrystEngComm. 14:178-187
The syntheses and crystal structures of four unsaturated bicyclo[3.3.1] nonane derivatives containing various functionalities are presented and their intermolecular interactions examined. The impact of unsaturation on crystal structures and intermole
Publikováno v:
Synthetic Communications. 41:2517-2523
Chiral reductase-mimicking organic molecule built on proline template incorporating a covalently bound NADH mimic via thiourea, and related reducing agent Hantzsch dihydropyridine, was designed. A synthetic path was developed involving interlinking o
Publikováno v:
Chemistry and Physics of Lipids. 159:45-50
1,4-naphthoquinone derivatives (NQD) containing lipophilic alkyl chains, i.e. 2-((Z)-heptadec-8-enyl)-3-methyl 1,4-naphthoquinone (QMe), 2-((Z)-heptadec-8-enyl)-3-hydroxy-1,4-naphthoquinone (QOH) and (Z)-octadec-9-enyl 1,4-naphthoquinone-2-carboxylat