Related Experiment Video
Updated: Aug 20, 2026

Facile Preparation of (2Z,4E)-Dienamides by the Olefination of Electron-deficient Alkenes with Allyl Acetate
Published on: June 21, 2017
Enantioseparation on mono(6A-n-allylamino-6A-deoxy)permethylated 3-cyclodextrin covalently bonded silica gel
1Department of Chemistry, National University of Singapore, 10 Kent Ridge Crescent, Singapore 119260, Singapore.
Abstract:
A chiral selector, mono(6A-N-allylamino-6A-deoxy)permethylated beta-cyclodextrin, was synthesized through a facile synthetic route and chemically immobilized onto porous silica gel via hydrosilylation to afford a cyclodextrin based chiral stationary phase MeCD-CSP. This chiral stationary phase exhibited good enantioselectivity under standard HPLC conditions. The optimal resolution of 1-(p-bromophenyl)ethanol and bromopheniramine was achieved under normal-phase conditions using a mobile phase comprising n-hexane (hexane) and 2-propanol (IPA). The enantioseparation of warfarin, suprofen and a series of flavanones under reversed-phase conditions were optimized and efficient enantioseparations for these analytes were obtained.
Related Concept Videos
Silica Gel Column Chromatography: Overview
Polar components tend to bind strongly to the silica gel, causing them to move slowly through the column. In contrast, nonpolar compounds...
Size-Exclusion Chromatography
Silica particles offer advantages such as rigidity,...
High-Performance Liquid Chromatography: Introduction
In HPLC, two phases play a critical role in the separation process:

