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Preparation of diclofop-methyl enantiomers by a semi-preparative high-performance liquid chromatography

机译:半制备型高效液相色谱法制备双氯氟甲基对映体

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A chiral stationary phase (CSP) was prepared by coating cellulose tris(4-methylbenzoate) (CTMB) onto aminopropylated silica gel. Chiral herbicide diclofop-methyl (DM) was well resolved on analytical coated-CTMB CSP using 85/15 n-hexane/isopropanol as the mobile phase by high-performance liquid chromatography (HPLC), and the semi-preparation of DM enantiomers was conducted by the semi-chromatography. With a concentration 10000 ppm and a 20 µL loop, the yields of (+)-DM and (−)-DM were 1.590 mg/h and 1.583 mg/h, respectively.
机译:通过将纤维素三(4-甲基苯甲酸酯)(CTMB)涂覆到氨基丙基化硅胶上来制备手性固定相(CSP)。通过高效液相色谱(HPLC)在85/15正己烷/异丙醇作为流动相的分析型包被CTMB CSP上很好地拆分了手性除草剂二氯双氟甲基(DM),并进行了DM对映异构体的半制备通过半色谱法。在浓度为10000 ppm和定量回路为20 µL的情况下,(+)-DM和(-)-DM的产量分别为1.590 mg / h和1.583 mg / h。

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