4-(4-Bromo-phen-yl)-2-methyl-amino-3-nitro-5,6,7,8-tetra-hydro-4H-chromen-5-one.
Acta Crystallogr Sect E Struct Rep Online
; 69(Pt 6): o931-2, 2013 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-23795099
ABSTRACT
In the title compound, C16H15BrN2O4, the six-membered carbocyclic ring of the chromene moiety adopts an envelope conformation with the disordered methyl-ene C atom as the flap. The pyran ring is almost orthogonal to the chloro-phenyl ring, making a dihedral angle of 87.11â
(12)°. The amine-group N atom deviates significantly from the pyran ring [0.238â
(3)â
Å]. The mol-ecular structure is stabilized by an intra-molecular N-Hâ¯O hydrogen bond, which generates an S(6) ring motif. In the crystal, mol-ecules are linked via C-Hâ¯O hydrogen bonds, which generate C(8) chains running parallel to the b axis. The chains are linked by C-Hâ¯π inter-actions. The methyl-ene-group C atom of the chromene system that is disordered, along with its attached H atoms and the H atoms on the two adjacent C atoms, has an occupancy ratio of 0.791â
(7)0.209â
(7).
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MEDLINE
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En
Ano de publicação:
2013
Tipo de documento:
Article