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(6bS*,14R*,14aR*)-Methyl 14-(4-methyl-phen-yl)-7-oxo-6b,6c,7,12b,14,14a-hexa-hydro-1H-pyrano[3,2-c:5,4-c']dichromene-14a-carboxyl-ate.

Ponnusamy R, Sabari V, Sivakumar G, Bakthadoss M, Aravindhan S - Acta Crystallogr Sect E Struct Rep Online (2013)

Bottom Line: The pyran ring bearing the methyl-phenyl substituent has a half-chair conformation while the other pyran ring has an envelope conformation with the tetra-substituted C atom as the flap.The benzene ring of the chromeno ring system is inclined to the benzene ring fused to the latter pyran ring by 74.66 (9)°.These aromatic rings are inclined to the 4-methyl-phenyl ring by 52.67 (9) and 66.63 (10)°, respectively.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Computer Science & Engineering, Madha Engineering College, Kundrathur, Chennai 600 069, India.

ABSTRACT
In the title compound, C(28)H(22)O(6), the chromeno ring system is almost planar, with a dihedral angle between the mean planes of the pyran and benzene rings of 1.87 (8)°. The pyran ring bearing the methyl-phenyl substituent has a half-chair conformation while the other pyran ring has an envelope conformation with the tetra-substituted C atom as the flap. The benzene ring of the chromeno ring system is inclined to the benzene ring fused to the latter pyran ring by 74.66 (9)°. These aromatic rings are inclined to the 4-methyl-phenyl ring by 52.67 (9) and 66.63 (10)°, respectively. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to the bc plane.

No MeSH data available.


Related in: MedlinePlus

A view along the a axis of the crystal packing of the title compound. The C-H···O hydrogen bonds are shown as dashed lines [see Table 1 for details; H atoms not involved in these interactions have been omitted for clarity].
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Fap2: A view along the a axis of the crystal packing of the title compound. The C-H···O hydrogen bonds are shown as dashed lines [see Table 1 for details; H atoms not involved in these interactions have been omitted for clarity].


(6bS*,14R*,14aR*)-Methyl 14-(4-methyl-phen-yl)-7-oxo-6b,6c,7,12b,14,14a-hexa-hydro-1H-pyrano[3,2-c:5,4-c']dichromene-14a-carboxyl-ate.

Ponnusamy R, Sabari V, Sivakumar G, Bakthadoss M, Aravindhan S - Acta Crystallogr Sect E Struct Rep Online (2013)

A view along the a axis of the crystal packing of the title compound. The C-H···O hydrogen bonds are shown as dashed lines [see Table 1 for details; H atoms not involved in these interactions have been omitted for clarity].
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3569797&req=5

Fap2: A view along the a axis of the crystal packing of the title compound. The C-H···O hydrogen bonds are shown as dashed lines [see Table 1 for details; H atoms not involved in these interactions have been omitted for clarity].
Bottom Line: The pyran ring bearing the methyl-phenyl substituent has a half-chair conformation while the other pyran ring has an envelope conformation with the tetra-substituted C atom as the flap.The benzene ring of the chromeno ring system is inclined to the benzene ring fused to the latter pyran ring by 74.66 (9)°.These aromatic rings are inclined to the 4-methyl-phenyl ring by 52.67 (9) and 66.63 (10)°, respectively.

View Article: PubMed Central - HTML - PubMed

Affiliation: Department of Computer Science & Engineering, Madha Engineering College, Kundrathur, Chennai 600 069, India.

ABSTRACT
In the title compound, C(28)H(22)O(6), the chromeno ring system is almost planar, with a dihedral angle between the mean planes of the pyran and benzene rings of 1.87 (8)°. The pyran ring bearing the methyl-phenyl substituent has a half-chair conformation while the other pyran ring has an envelope conformation with the tetra-substituted C atom as the flap. The benzene ring of the chromeno ring system is inclined to the benzene ring fused to the latter pyran ring by 74.66 (9)°. These aromatic rings are inclined to the 4-methyl-phenyl ring by 52.67 (9) and 66.63 (10)°, respectively. In the crystal, mol-ecules are linked via C-H⋯O hydrogen bonds, forming a two-dimensional network parallel to the bc plane.

No MeSH data available.


Related in: MedlinePlus