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A direct liquid chromatographic enantioselective separation of a set of β-blocker enantiomers on the new immobilized and conventional coated amylose tris-(3,5-dimethylphenylcarbamate) chiral stationary phases (Chiralpak IA and Chiralpak AD, respectively) was studied using methanol as mobile phase and ethanolamine as an organic modifier (100:0.1, v/v). The separation, retention and elution order of...
The enantioseparation of a set of new cyclopropanes derived from Meldrum's acid, dimethyl malonate, (silanoxyvinyl)-diazoacetates and 3,3,3-trifluoro-2-diazopropionate has been achieved on cellulose tris(3,5-dimethylphenylcarbamate) Chiralcel OD coated on 10μm silica-gel as chiral stationary phase in high-performance liquid chromatography (HPLC). The HPLC was equipped with a sensitive optical rotation...
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