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3,3,6,6-Tetra-methyl-9-(2-nitro-phen-yl)-3,4,6,7-tetra-hydro-2H-xanthene-1,8(5H,9H)-dione.

ABSTRACT: In the title compound, C(23)H(25)NO(5), the pyran ring adopts a flattened boat conformation, while the two cyclo-hexenone rings are in envelope conformations. The 3-nitro-phenyl ring is almost perpendicular to the pyran ring, making a dihedral angle of 87.1?(3)°.

SUBMITTER: Mo Y 

PROVIDER: S-EPMC3007304 | biostudies-literature | 2010

REPOSITORIES: biostudies-literature

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3,3,6,6-Tetra-methyl-9-(2-nitro-phen-yl)-3,4,6,7-tetra-hydro-2H-xanthene-1,8(5H,9H)-dione.

Mo Yingming Y   Zang Hong-Jun HJ   Cheng Bo-Wen BW  

Acta crystallographica. Section E, Structure reports online 20100731 Pt 8

In the title compound, C(23)H(25)NO(5), the pyran ring adopts a flattened boat conformation, while the two cyclo-hexenone rings are in envelope conformations. The 3-nitro-phenyl ring is almost perpendicular to the pyran ring, making a dihedral angle of 87.1 (3)°. ...[more]

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