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Preparation and chiral recognition in HPLC of cellulose 3,5-dichlorophenylcarbamates immobilized onto silica gel

✍ Scribed by Hai-tao Qu; Jun-qing Li; Guang-shun Wu; Jun Shen; Xian-de Shen; Yoshio Okamoto

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
176 KB
Volume
34
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

The 3,5‐dichlorophenylcarbamates (2) of cellulose bearing a small amount of 3‐(triethoxysilyl)propyl residues were synthesized by a one‐pot process and immobilized onto a silica gel through intermolecular polycondensation of the triethoxysilyl groups. The obtained cellulose derivatives were characterized by ^1^H NMR and elemental analysis (EA), and their recognition abilities were evaluated by high‐performance liquid chromatography (HPLC). The cellulose derivatives containing about 1–5% of the 3‐(triethoxysilyl)propyl residue were efficiently immobilized with a high chiral recognition ability. The immobilized chiral packing materials (CPMs) could be used with the eluents containing chloroform and tetrahydrofuran (THF), which cannot be used with the conventional coated‐type chiral packing materials. By using these eluents, the chiral recognition for many racemates was improved.

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