Acta Crystallographica Section E

Structure Reports Online

Volume 69, Part 6 (June 2013)


organic compounds



su2596 scheme

Acta Cryst. (2013). E69, o892    [ doi:10.1107/S1600536813012804 ]

8,13,26-Trioxa-23-thia-21-azapentacyclo[18.6.0.02,7.014,19.021,25]hexacosa-2(7),3,5,14,16,18-hexaene

S. K. Devi, T. Srinivasan, S. Purushothaman, R. Raghunathan and D. Velmurugan

Abstract: In the title compound, C21H23NO3S, both the thiazole and oxazolidine rings adopt twist conformations. The mean plane of the thiazole ring makes a dihedral angle of 61.02 (7)° with the oxazolidine ring mean plane, and dihedral angles of 22.72 (6) and 75.07 (6)° with the benzene rings. The benzene rings are almost perpendicular to one another, making a dihedral angle of 89.14 (6)°. There are bifurcated intramolecular C-H...O hydrogen bonds in the molecular structure. In the crystal, molecules are linked via C-H...[pi] interactions, forming chains propagating along [100].


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