Hua-quan Liu, De-cai Wang, W. Xu
Mar 25, 2009
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The asymmetric unit of the title compound, C11H11BrN2O4, contains two crystallographically independent molecules in which the bromophenyl rings are oriented at dihedral angles of 39.28 (3)°. The dioxolane rings adopt envelope conformations. Intramolecular N—H⋯O hydrogen bonds result in the formation of four five-membered rings, having planar and envelope conformations. In the crystal structure, intermolecular N—H⋯O hydrogen bonds link molecules into chains along the b axis, forming R 2 2(8) ring motifs.