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Diethyl 2,6,11-trioxo-2,3-dihydro-1H-anthra[1,2-d]imidazole-1,3-diacetate.


ABSTRACT: The title compound, C(23)H(20)N(2)O(7), consists of three fused six-membered rings (A, B and C) and one five-membered ring (D), linked to two ethyl acetate groups. The four fused rings are slightly folded around the O=C?C=O direction of the anthraquinone system, with a dihedral angle of 3.07?(8)° between the fused five- and six-membered rings (C and D) and the terminal ring (A). The planes through the atoms forming each acetate group are nearly perpendicular to the mean plane of the anthra[1,2-d]imidazole system, as indicated by the dihedral angles between them of 79.94?(9) and 85.90?(9)°. The crystal packing displays non-classical C-H?O hydrogen bonds.

SUBMITTER: Afrakssou Z 

PROVIDER: S-EPMC3213523 | biostudies-literature | 2011 Aug

REPOSITORIES: biostudies-literature

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Diethyl 2,6,11-trioxo-2,3-dihydro-1H-anthra[1,2-d]imidazole-1,3-diacetate.

Afrakssou Zahra Z   Haoudi Amal A   Capet Frédéric F   Rolando Christian C   El Ammari Lahcen L  

Acta crystallographica. Section E, Structure reports online 20110723 Pt 8


The title compound, C(23)H(20)N(2)O(7), consists of three fused six-membered rings (A, B and C) and one five-membered ring (D), linked to two ethyl acetate groups. The four fused rings are slightly folded around the O=C⋯C=O direction of the anthraquinone system, with a dihedral angle of 3.07 (8)° between the fused five- and six-membered rings (C and D) and the terminal ring (A). The planes through the atoms forming each acetate group are nearly perpendicular to the mean plane of the anthra[1,2-d  ...[more]

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