Gas-liquid chromatography system with α-cyclodextrin as an analytical tool for the studies of stereoselective hydrogenation of α-pinene

Separation of Enantiomers by Inclusion Gas Chromatography: On the Influence of Water in the Molecular Complexation of Methyl 2‐Chloropropanoate Enantiomers and the Modified γ‐Cyclodextrin Lipodex‐E

“…Also molecular modeling studies and thermodynamic mechanistic approaches advanced in the vast literature on modified cyclodextrin stationary GC phases are not likely to be perturbed by secondary equilibria involving solvents. This does not hold true for the classical enantioselective system of native α‐cyclodextrin in formamide, where water is required for efficient enantiomeric separation of terpenoids …”

“…This does not hold true for the classical enantioselective system of native α-cyclodextrin in formamide, where water is required for efficient enantiomeric separation of terpenoids. [8][9][10][11][12][13]…”

“…7 In early work emerging from 1983 onwards, Kościelski et al employed native α-cyclodextrin hydrate in formamide for the enantioseparation of terpenoic hydrocarbons (α-and β-pinene, cis-and trans-pinane and carene). [8][9][10] In a typical application the stationary phase contained α-cyclodextrin (0.79 mol%), 4% of water and lithium nitrate (0.45 g) as stabilizing agent. The water content was determined by thermogravimetric analysis.…”

Desarrollo de columnas capilares quirales para su empleo en cromatografía de gases: aplicación a la separación de contaminantes ambientales quirales

“…Por ejemplo, MacLachlan y colaboradores informaron una variedad de materiales mesoporosos (sílica, organosilica, carbono y titania, etc.) con estructuras nemáticas quirales usando celulosa nanocristalina como plantilla quiral [77][78][79][80].…”

“…En el año 1983 se informó por primera vez el empleo de ciclodextrinas como fases estacionarias quirales para la separación de enantiómeros por cromatografía gaseosa [76,77].…”