Guifen Lu, Wensheng Lin, Wei-Hua Zhu
Jul 23, 2011
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Journal
Acta Crystallographica Section E: Structure Reports Online
Abstract
The title pyrrole derivative, C12H17NO4, consists of a pyrrole ring with two diagonally attached methoxycarbonyl groups and two diagonally attached ethyl groups. The two carbonyl groups are approximately in the same plane as the pyrrole ring, making dihedral angles of 3.50 (19) and 6.70 (19)°. In the crystal, adjacent molecules are assembled into dimers in a head-to-head mode by pairs of intermolecular N—H⋯O hydrogen bonds.