Dynamic HPLC on chiral stationary phases: A powerful tool for the investigation of stereomutation processes
✍ Scribed by Ilaria D'Acquarica; Francesco Gasparrini; Marco Pierini; Claudio Villani; Giovanni Zappia
- Publisher
- John Wiley and Sons
- Year
- 2006
- Tongue
- English
- Weight
- 887 KB
- Volume
- 29
- Category
- Article
- ISSN
- 1615-9306
No coin nor oath required. For personal study only.
✦ Synopsis
Abstract
Dynamic HPLC on enantioselective stationary phases has become a well‐established technique to investigate chiral molecules with internal motions that result in stereoinversion and occur on the time scale of the separation process. Kinetic parameters for the on‐column interconversion phenomena can be extracted from experimental peak profiles by computer simulation or by direct calculation methods. The technique has been used in a wide range of temperatures and is complementary in scope to dynamic NMR spectroscopy.
📜 SIMILAR VOLUMES
A chiral stationary phase (CSP 1) prepared starting from (R)-4hydroxyphenylglycine and then grafting (R)-N-butanoyl-4-allyloxyphenylglycine Npropyl amide to silica gel was found to be very effective in separating the enantiomers of N-(3,5-dinitrobenzoyl)-␣-amino amides. From the chromatographic beha
## Abstract A novel chiral stationary phase (CSP) for HPLC was prepared by bonding (__R__)‐1‐phenyl‐2‐(4‐methylphenyl)ethylamine amide derivative of (__S__)‐valine to aminopropyl silica gel through a 2‐amino‐3,5‐dinitro‐1‐carboxamido‐benzene unit. The CSP was used for the separation of some amino a