title: Immobilization of polysaccharide derivatives onto silica gel Facile synthesis of chiral packing materials by means of intermolecular polycondensation of triethoxysilyl groups.
abstract: The 3,5-dimethylphenylcarbamates of cellulose and amylose bearing a small amount of 3-(triethoxysilyl)propyl residues were synthesized by a simple process and efficiently immobilized onto a silica gel support by intermolecular polycondensation of the triethoxysilyl groups. The obtained chiral packing materials (CPMs) were evaluated by high-performance liquid chromatography. The polysaccharide derivatives containing about 1-2% of the 3-(triethoxysilyl)propyl residue were efficiently immobilized with a high chiral recognition. The immobilized CPMs could be used with the eluents containing chloroform and tetrahydrofuran, which cannot be used with the conventional coated-type CPMs. By using these eluents, the chiral recognitions for many racemates could be improved.
authors.affiliation: Department of Applied Chemistry, Graduate School of Engineering, Nagoya University, Furo-cho, Chikusa-ku, Nagoya 464-8603, Japan.
authors.forename: Tomoyuki
authors.initials: T
authors.lastname: Ikai
authors.forename: Chiyo
authors.initials: C
authors.lastname: Yamamoto
authors.forename: Masami
authors.initials: M
authors.lastname: Kamigaito
authors.forename: Yoshio
authors.initials: Y
authors.lastname: Okamoto
mesh_terms: D002851:Chromatography, High Pressure Liquid / Q000295:instrumentation; D011134:Polysaccharides / Q000737:chemistry*; D058428:Silica Gel; D012822:Silicon Dioxide / Q000737:chemistry*; D013237:Stereoisomerism
chemical_list: D011134:Polysaccharides; D058428:Silica Gel; D012822:Silicon Dioxide