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Massimo Morbidelli - One of the best experts on this subject based on the ideXlab platform.

  • enantiomer separation of α ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases
    Journal of Chromatography A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Enantiomer separation of Alpha-Ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases.
    Journal of chromatography. A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

Francesca Quattrini - One of the best experts on this subject based on the ideXlab platform.

  • enantiomer separation of α ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases
    Journal of Chromatography A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Enantiomer separation of Alpha-Ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases.
    Journal of chromatography. A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Preparative separations of α-ionone and α-damascone enantiomers with simulated moving bed chromatography
    Special Publications, 1
    Co-Authors: A. M. Spanier, Francesca Quattrini, Fereidoon Shahidi, Thomas H. Parliment, C. J. Mussinan, E. Tratras Contis, G. Zenoni, M. Mazzotti, Claudio Fuganti
    Abstract:

    Like most biologically active compounds, chiral fragrances have different flavour response in the two enantiomeric forms. This is the case of the norterpenoids Alpha-Ionone and alpha-damascone. In this work we present the resolution of racemic Alpha-Ionone and alpha-damascone through a special chromatographic technique, the Simulated Moving Bed, which allows to feed continuously the mixture to be separated. This process was originally developed for hydrocarbon separations and is now being applied in fine chemistry to the separation of enantiomers since, unlike the traditional preparative chromatography, it does not require baseline separation. In addition, it leads to higher productivity and lower eluent consumption

Claudio Fuganti - One of the best experts on this subject based on the ideXlab platform.

  • enantiomer separation of α ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases
    Journal of Chromatography A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Enantiomer separation of Alpha-Ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases.
    Journal of chromatography. A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Preparative separations of α-ionone and α-damascone enantiomers with simulated moving bed chromatography
    Special Publications, 1
    Co-Authors: A. M. Spanier, Francesca Quattrini, Fereidoon Shahidi, Thomas H. Parliment, C. J. Mussinan, E. Tratras Contis, G. Zenoni, M. Mazzotti, Claudio Fuganti
    Abstract:

    Like most biologically active compounds, chiral fragrances have different flavour response in the two enantiomeric forms. This is the case of the norterpenoids Alpha-Ionone and alpha-damascone. In this work we present the resolution of racemic Alpha-Ionone and alpha-damascone through a special chromatographic technique, the Simulated Moving Bed, which allows to feed continuously the mixture to be separated. This process was originally developed for hydrocarbon separations and is now being applied in fine chemistry to the separation of enantiomers since, unlike the traditional preparative chromatography, it does not require baseline separation. In addition, it leads to higher productivity and lower eluent consumption

Markus Juza - One of the best experts on this subject based on the ideXlab platform.

  • enantiomer separation of α ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases
    Journal of Chromatography A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Enantiomer separation of Alpha-Ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases.
    Journal of chromatography. A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

Giovanni Biressi - One of the best experts on this subject based on the ideXlab platform.

  • enantiomer separation of α ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases
    Journal of Chromatography A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.

  • Enantiomer separation of Alpha-Ionone using gas chromatography with cyclodextrin derivatives as chiral stationary phases.
    Journal of chromatography. A, 1999
    Co-Authors: Francesca Quattrini, Giovanni Biressi, Markus Juza, Marco Mazzotti, Claudio Fuganti, Massimo Morbidelli
    Abstract:

    The gas chromatographic enantiomer separation of Alpha-Ionone was studied with three different chiral stationary phases using as chiral selectors: (1) heptakis(2,3,6-tri-O-methyl)-beta-cyclodextrin, dissolved in polysiloxane PS-086, (2) octakis(2,6-di-O-pentyl-3-O-trifluoroacetyl)-gamma-cyclodextrin and (3) octakis(2,6-di-O-pentyl-3-O-butanoyl)-gamma-cyclodextrin, both dissolved in polysiloxane SE-54. The influence of the concentration of the chiral selector in the polysiloxane, coated on Chromosorb P AW-DMCS 80-100 mesh, is described and discussed, as well as the effect of Chromosorb loading. The feasibility of the preparative gas chromatographic separation of the enantiomers of Alpha-Ionone is considered; in order to provide a term of comparison, the estimated performances are compared with those achieved in the separation of the enantiomers of the inhalation anaesthetic enflurane.