Abstract
The preparation of the new chiral stationary phase SiSQuin, obtained by reaction of γ-mercaptopropylsilanized silica with the commercially available Cinchona alkaloid quinine, is described. This support is efficient for the rapid (6–7 min) separation of some binaphthol derivatives (separation factors between 1.08 and 1.16). The use of a circular dichroism detector allows the elution order to be established in a non-empirical way. This information is then used to propose a chiral recognition mechanism.
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