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Green synthesis of a typical chiral stationary phase of cellulose-tris(3,5-dimethylphenylcarbamate)

文献类型： 外文期刊

作者： Liu, Run-Qiang 2 ; Bai, Lian-yang 1 ; Zhang, Yi-Jun 2 ; Zhang, Yu-Ping 2 ;

作者机构： 1.Hunan Agr Univ, Coll Plant Protect, Changsha 410128, Hunan, Peoples R China

2.Henan Inst Sci & Technol, Xinxiang 453003, Peoples R China

3.Hunan Acad Agr Sci, Changsha 410125, Hunan, Peoples R China

关键词： Ionic liquid;AmimCl;HPLC;Chiral stationary phase;Pesticides;Chiral separation

期刊名称：CHEMISTRY CENTRAL JOURNAL （ 影响因子：4.215； 五年影响因子：3.836 ）

ISSN： 1752-153X

年卷期： 2013 年 7 卷

页码：

收录情况： SCI

摘要： Background: At present, the study on the homogeneous-phase derivatization of cellulose in ionic liquid is mainly focused on its acetylation. To the best of our knowledge, there has been no such report on the preparation of cellulose-tris(3,5-dimethylphenylcarbamate) (CDMPC) with ionic liquid 1-allyl-3-methyl-imidazolium chloride (AmimCl) so far. Results: With ionic liquid 1-allyl-3-methylimidazolium chloride (AmimCl) as a reaction solvent, cellulose-tris(3,5-dimethylphenylcarbamate) (CDMPC) was synthesized by the reaction of 3,5-dimethylphenyl isocyanate and soluble microcrystalline cellulose in a homogeneous phase. The synthesized CDMPC was then coated onto the surfaces of aminopropyl silica gel to prepare a chiral stationary phase (CSP). The prepared CSP was successfully used in chiral separation of seven racemic pesticides by high performance liquid chromatography (HPLC). Good chiral separation was obtained using n-hexane and different modifiers as the mobile phases under the optimal percentage and column temperature, with the resolution of metalaxyl, diniconazole, flutriafol, paclobutrazol, hexaconazole, myclobutanil and hexythiazox of 1.73, 1.56, 1.26, 1.00, 1.18, 1.14 and 1.51, respectively. The experimental results suggested it was a good choice using a green solvent of AmimCl for cellulose functionalization. Conclusion: CDMPC was successfully synthesized as the chiral selector by reacting 3, 5-dimethylphenyl isocyanate with dissolved microcrystalline cellulose in a green ionic liquid of AmimCl.

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