Ethyl 2-amino-4-(4-fluorophenyl)-6-methoxy-4H-benzo[h]chromene-3-carboxylate
2012 ◽
Vol 68
(6)
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pp. o1803-o1804
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The Mean
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In the title compound, C23H20FNO4, the fluoro-substituted benzene ring is approximately perpendicular to the mean plane of the 4H-benzo[h]chromene ring system [maximum deviation = 0.264 (1) Å], with a dihedral angle of 83.79 (6)°. The pyran ring adopts a flattened boat conformation. The methoxy group is slightly twisted from the attached benzene ring of the 4H-benzo[h]chromene moiety [C—O—C—C = −2.1 (2)°]. An intramolecular N—H...O hydrogen bond generates an S(6) ring motif. In the crystal, molecules are linked by N—H...O and N—H...F hydrogen bonds into a layer parallel to the bc plane. The crystal packing also features C—H...π interactions.
2015 ◽
Vol 71
(7)
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pp. o468-o469
Keyword(s):
2015 ◽
Vol 71
(7)
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pp. o481-o482
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Keyword(s):
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2013 ◽
Vol 69
(2)
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pp. o281-o281
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Keyword(s):
2012 ◽
Vol 68
(8)
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pp. o2524-o2525
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Keyword(s):
2015 ◽
Vol 71
(8)
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pp. o629-o630
Keyword(s):
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