%0 Journal Article %T 4,9-Dioxa-1,3(1,2)-dibenzena-2(4,5)-1,3-oxazolidinacyclononaphane %A B. Balakrishnan %A P. R. Seshadri %A S. Purushothaman %A R. Raghunathan %J Acta Crystallographica Section E %D 2011 %I International Union of Crystallography %R 10.1107/s1600536810052517 %X The oxazole ring in the title compound, C20H23NO3, adopts an envelope conformation while the 12-membered ring is in a chair conformation. The dihedral angle between the benzene rings is 37.8 (1)¡ã. The crystal structure displays intermolecular C¡ªH...O hydrogen bonding. %U http://scripts.iucr.org/cgi-bin/paper?S1600536810052517