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9-(2-Hy-droxy-4,4-dimethyl-6-oxocyclo-hex-1-en-1-yl)-3,3-dimethyl-2,3,4,9-tetra-hydro-1H-xanthen-1-one.

Kurbanova MM, Gurbanov AV, Mahmudov KT, Maharramov AM, Ng SW - Acta Crystallogr Sect E Struct Rep Online (2012)

Bottom Line: The cyclo-hexene ring that constitutes a part of the tetra-hydroxanthene fused-ring system of the title compound, C(23)H(26)O(4), adopts a flattened half-chair conformation that approximates an envelope conformation (in which the methyl-ene C atom bearing the two methyl substituents represents the flap) as five of the six atoms lie approximately on a plane (r.m.s. deviation = 0.020 Å).The mean plane of the cyclo-hexene ring with the hy-droxy substituent is approximately perpendicular to the mean plane of the tetra-hydroxanthene system.In the crystal, adjacent mol-ecules are linked by O-H⋯O(carbon-yl) hydrogen bonds into a chain running along the b axis.

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ABSTRACT
The cyclo-hexene ring that constitutes a part of the tetra-hydroxanthene fused-ring system of the title compound, C(23)H(26)O(4), adopts a flattened half-chair conformation that approximates an envelope conformation (in which the methyl-ene C atom bearing the two methyl substituents represents the flap) as five of the six atoms lie approximately on a plane (r.m.s. deviation = 0.020 Å). The mean plane of the cyclo-hexene ring with the hy-droxy substituent is approximately perpendicular to the mean plane of the tetra-hydroxanthene system. In the crystal, adjacent mol-ecules are linked by O-H⋯O(carbon-yl) hydrogen bonds into a chain running along the b axis.

No MeSH data available.


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Thermal ellipsoid plot (Barbour, 2001) of C23H26O4 at the 50% probability level. Hydrogen atoms are drawn as spheres of arbitrary radius. The disorder is not shown.
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Fap1: Thermal ellipsoid plot (Barbour, 2001) of C23H26O4 at the 50% probability level. Hydrogen atoms are drawn as spheres of arbitrary radius. The disorder is not shown.


9-(2-Hy-droxy-4,4-dimethyl-6-oxocyclo-hex-1-en-1-yl)-3,3-dimethyl-2,3,4,9-tetra-hydro-1H-xanthen-1-one.

Kurbanova MM, Gurbanov AV, Mahmudov KT, Maharramov AM, Ng SW - Acta Crystallogr Sect E Struct Rep Online (2012)

Thermal ellipsoid plot (Barbour, 2001) of C23H26O4 at the 50% probability level. Hydrogen atoms are drawn as spheres of arbitrary radius. The disorder is not shown.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3379214&req=5

Fap1: Thermal ellipsoid plot (Barbour, 2001) of C23H26O4 at the 50% probability level. Hydrogen atoms are drawn as spheres of arbitrary radius. The disorder is not shown.
Bottom Line: The cyclo-hexene ring that constitutes a part of the tetra-hydroxanthene fused-ring system of the title compound, C(23)H(26)O(4), adopts a flattened half-chair conformation that approximates an envelope conformation (in which the methyl-ene C atom bearing the two methyl substituents represents the flap) as five of the six atoms lie approximately on a plane (r.m.s. deviation = 0.020 Å).The mean plane of the cyclo-hexene ring with the hy-droxy substituent is approximately perpendicular to the mean plane of the tetra-hydroxanthene system.In the crystal, adjacent mol-ecules are linked by O-H⋯O(carbon-yl) hydrogen bonds into a chain running along the b axis.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
The cyclo-hexene ring that constitutes a part of the tetra-hydroxanthene fused-ring system of the title compound, C(23)H(26)O(4), adopts a flattened half-chair conformation that approximates an envelope conformation (in which the methyl-ene C atom bearing the two methyl substituents represents the flap) as five of the six atoms lie approximately on a plane (r.m.s. deviation = 0.020 Å). The mean plane of the cyclo-hexene ring with the hy-droxy substituent is approximately perpendicular to the mean plane of the tetra-hydroxanthene system. In the crystal, adjacent mol-ecules are linked by O-H⋯O(carbon-yl) hydrogen bonds into a chain running along the b axis.

No MeSH data available.


Related in: MedlinePlus