Zobrazeno 1 - 10
of 58
pro vyhledávání: '"Hisanori Ueki"'
Publikováno v:
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1920-1928 (2012)
We describe herein the design and synthesis of asymmetric, pentadentate ligands, which are able to coordinate to Ni(II) cations leading to quasi-diastereomeric complexes displaying two new elements of chirality: stereogenic axis and helix along with
Externí odkaz:
https://doaj.org/article/314a8cc88079453a9d7e0a2ca75124dc
Autor:
Kentaro Tashiro, Kappamveettil Sajna, Masaki Kawano, Rajamani Rajmohan, Pothiappan Vairaprakash, Toshiaki Takei, Hisanori Ueki, Hiroyoshi Ohtsu, Geoffrey D Vrla
Publikováno v:
Chemistry, an Asian journal. 15(6)
Self-assembly of a series of dimetallic sequences constructed on a backbone with two successive tyrosine moieties (Fmoc-M1 -M2 -CO2 H) revealed that the resultant morphology is clearly dependent on the metal sequence, where Re-containing sequences su
Autor:
Rajmohan, Rajamani, Vrla, Geoffrey, Hisanori Ueki, Kappamveettil Sajna, Toshiaki Takei, Hiroyoshi Ohtsu, Masaki Kawano, Pothiappan Vairaprakash, Kentaro Tashiro
Publikováno v:
Chemistry - An Asian Journal; 3/16/2020, Vol. 15 Issue 6, p766-769, 4p
Autor:
Trevor K. Ellis, Hiroki Moriwaki, Alexander E. Sorochinsky, Vadim A. Soloshonok, Hisanori Ueki, Tatsunori Sato, José Luis Aceña
Publikováno v:
Journal of Fluorine Chemistry. 152:114-118
Several ω-CF 3 -substituted α-amino acids have been prepared in optically pure form via two complementary approaches. Racemic fluorinated derivatives of 2-aminobutanoic acid, norvaline and norleucine were chemically deracemized by complexation with
Publikováno v:
Beilstein Journal of Organic Chemistry
Addi. Archivo Digital para la Docencia y la Investigación
instname
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1920-1928 (2012)
Addi. Archivo Digital para la Docencia y la Investigación
instname
Beilstein Journal of Organic Chemistry, Vol 8, Iss 1, Pp 1920-1928 (2012)
We describe herein the design and synthesis of asymmetric, pentadentate ligands, which are able to coordinate to Ni(II) cations leading to quasi-diastereomeric complexes displaying two new elements of chirality: stereogenic axis and helix along with
Autor:
Taizo Ono, Christian Roussel, Nicolas Vanthuyne, Teodor Silviu Balaban, Tam T. T. Bui, Vadim A. Soloshonok, Heike Fliegl, Jochen Bürck, Alex F. Drake, Jean-Valère Naubron, Hisanori Ueki, Wim Klopper
Publikováno v:
Journal of the American Chemical Society. 132:10477-10483
Binuclear square planar Ni(II) complexes are described, formed by two tridentate ligands with two imine-nitrogens coordinating two nickel atoms. Such complexes are synthetically readily available with great structural variety and present new types of
Publikováno v:
Tetrahedron: Asymmetry. 21:1396-1400
The preliminary results presented in this work show that an enantiomer purification approach based on SDE via sublimation can be extended to non-volatile liquid compounds such as α-(phenyl)ethylamine and its β-fluoro-derivatives by way of their rat
Publikováno v:
Journal of Fluorine Chemistry. 131:461-466
The lattice energies for the enantiopure and racemic crystals of α-(trifluoromethyl)lactic acid were calculated by a combination of the DFT calculations with the periodic boundary condition and the MP2 calculations of the interactions with neighbori
Publikováno v:
Journal of Fluorine Chemistry. 131:535-539
The presented results convincingly demonstrate that self-disproportionation of enantiomers via sublimation is substantially more complex phenomenon then was previously believed. We demonstrate that the racemic form of isopropyl 3,3,3-trifluoro-2-hydr
Publikováno v:
Journal of Fluorine Chemistry. 131:540-544
Preparation of racemic and enantiomerically enriched α-trifluoromethyl lactic acid amide [NHPh, NH(4-Cl-C 6 H 5 ), NHBn, NH t -Bu] derivatives have been developed. Ph, 4-Cl-C 6 H 5 , and tert -Bu derivatives were found to have substantial magnitude