6533b825fe1ef96bd1282921
RESEARCH PRODUCT
Enantiomeric Resolution of Asymmetric-Carbon-Free Binuclear Double-Stranded Cobalt(III) Helicates and Their Application as Catalysts in Asymmetric Reactions
Arto ValkonenRamalingam NatarajanRamalingam NatarajanPalani S. SubramanianPalani S. SubramanianRajendran ArunachalamRajendran ArunachalamKari RissanenShovan K. SenShovan K. SenEswaran ChinnarajaEswaran Chinnarajasubject
010405 organic chemistryResolution (electron density)HydrazineEnantioselective synthesischiralitychemistry.chemical_elementkompleksiyhdisteet010402 general chemistry01 natural sciencessupramolecular chemistry0104 chemical sciencesCatalysisInorganic ChemistryCrystallographychemistry.chemical_compoundchemistryAsymmetric carbonsupramolekulaarinen kemiacoordination complexesPhysical and Theoretical ChemistryEnantiomerta116CobaltDouble strandeddescription
A series of double-stranded binuclear helicates [Co2(H1)2]4+, [Co2(H2)2]4+, and [Co2(H3)2]4+, derived from monodeprotonated bis-pyridyl hydrazine-based ligands of H21, H22, and H23 with one, two, and three -CH2 spacers, were obtained. These asymmetric-carbon-free racemic helicates were separated into their ΔΔ and ΛΛ enantiomers. The resolved helicates were examined for the first time as enantioselective catalysts in asymmetric benzoylation and nitroaldol reactions.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2018-08-30 | Inorganic Chemistry |