Abstract
In the asymmetric unit of the title compound, C18H20N2O5, there are two crystallographic independent molecules. Both molecules are twisted; the dihedral angle between the two benzene rings is 7.2 (5)° in one molecule, whereas it is 85.9 (4)° in the other. Of the three methoxy groups in the 3,4,5-trimethoxyphenyl unit, two methoxy groups at meta positions are approximately coplanar with the benzene plane [C—O—C—C torsion angles of −2.3 (13)–4.8 (11)°], but the other methoxy, at the para position, is out of the plane [C—O—C—C of 72.8 (9)° in one molecule and −77.5 (9)° in the other]. In the crystal, molecules are linked by N—H⋯O hydrogen bonds and weak C—H⋯O interactions into tapes along the b axis. C—H⋯π interactions are also present.
Highlights
In the asymmetric unit of the title compound, C18H20N2O5, there are two crystallographic independent molecules
Of the three methoxy groups in the 3,4,5trimethoxyphenyl unit, two methoxy groups at meta positions are approximately coplanar with the benzene plane [C—O—
Molecules are linked by N—H O hydrogen bonds and weak C—H O interactions into tapes along the b axis
Summary
In the asymmetric unit of the title compound, C18H20N2O5, there are two crystallographic independent molecules. Both molecules are twisted; the dihedral angle between the two benzene rings is 7.2 (5) in one molecule, whereas it is 85.9 (4). Of the three methoxy groups in the 3,4,5trimethoxyphenyl unit, two methoxy groups at meta positions are approximately coplanar with the benzene plane [C—O—. C—C torsion angles of 2.3 (13)–4.8 (11) ], but the other methoxy, at the para position, is out of the plane [C—O—C—. C of 72.8 (9) in one molecule and 77.5 (9) in the other]. Molecules are linked by N—H O hydrogen bonds and weak C—H O interactions into tapes along the b axis.
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