1997
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Abstract: A series of trans-4,5-diaryl-1,3-dioxolanes (compounds 1−10) has been prepared from the corresponding 1,2-diols obtained by asymmetric syn-dihydroxylation of (E)-olefins, in the presence of derivatives of quinidine. Compounds 1−10, when dissolved in MBBA or E7, induce left-handed cholesterics, showing twisting powers which, in absolute value, are strongly dependent on the structure of the solute and on the nature of the nematic mesophase. By means of molecular mechanics calculations and the analysis of CD spec… Show more

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