Molecular and crystalline structure of the diastereometric (-)-2-[O-(p-chlorobenzoyl)oxymethylene]p-menthane-3-ones−effective chiral components of induced cholesteric systems. II : Transdiastereomer

By the x-ray structural method the authors have established the trans-configuration of 1,4-alkyl substitution in the p-menthanone fragment of the molecules of one of the two obtained diastereomeric (-)-2-[0-(p- chlorbenzoyl)oxymethylene]-p-menthane-3-ones. The cyclohexanone ring has chair conformation with axial alkyl groups. The structural features of the investigated compound in the crystalline phase are compared with those for the previously studied cis-diastereomer and with the results of caculations by the method of molecular mechanics