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Immobilization of 3,5-dimethylphenylcarbamates of cellulose and amylose onto silica gel using (3-glycidoxypropyl)triethoxysilane as linker

✍ Scribed by Shouwan Tang; Tomoyuki Ikai; Masashi Tsuji; Yoshio Okamoto

Publisher
John Wiley and Sons
Year
2010
Tongue
English
Weight
217 KB
Volume
33
Category
Article
ISSN
1615-9306

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✦ Synopsis

Abstract

The 3,5‐dimethylphenylcarbamates of cellulose and amylose were effectively immobilized onto plain silica gels as chiral packing materials (CPMs) for HPLC by means of intermolecular polycondensation of triethoxysilyl groups introduced with (3‐glycidoxypropyl)triethoxysilane. The immobilization and chiral recognition abilities of the obtained CPMs prepared with different amounts of (3‐glycidoxypropyl)triethoxysilane were investigated. In addition, the solvent compatibilities of the immobilized‐type CPMs were examined with eluents containing chloroform and THF. When these eluents were used, for most of the tested racemates, the chiral resolving abilities of the obtained CPMs were improved.

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## 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 derivati