Synthesis and structure of new families of potential antitumor or antiviral agents. II. 1-(p-Toluenesulfonyloxy)-3,4:7,8-dibenzotricyclo[3.3.2.02,6]decane
作者:S. Ianelli、M. Nardelli、D. Belletti、B. Jamart-Grégoire、A. Zouaoui、P. Caubère
DOI:10.1107/s0108270192012782
日期:1993.7.15
The title compound, 3,4:7,8-dibenzotricyclo[3.3.2.0(2,6)]-dec-1-yl p-toluenesulfonate was prepared by the reaction of 4b,5,6,6a,10b,10c-hexahydrobenzo[3,4]cyclobuta[1,2-a]biphenylen-4b-ol with an excess of p-toluenesulfonic acid and its structure determined by X-ray diffraction. The space group, Cc, is non-centrosymmetric and four chiral centres are present in the molecule (asymmetry in the environment of S also makes this atom chiral) but both enantiomers are present in the crystal as a result of the presence of the c glide. The conformation of the molecule is illustrated and the orientation of the p-toluenesulfonic substituent discussed. A systematic asymmetry of the O=S-O angles (which makes sulfur chiral) is observed.