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8,8-Dimethyl-8,9-dihydro-7H-chromeno[2,3-b]quinoline-10,12-dione
oleh: Thothadri Srinivasan, Panneerselvam Yuvaraj, Boreddy S. R. Reddy, Devadasan Velmurugan
Format: | Article |
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Diterbitkan: | International Union of Crystallography 2013-02-01 |
Deskripsi
In the title compound, C18H15NO3, the fused benzopyran and pyridine rings are essentially coplanar [r.m.s. deviation = 0.0533 Å with a maximum deviation of 0.080 (1) Å for a benzene C atom]. The cyclohexanone ring adopts an envelope conformation with the dimethyl-substituted C atom 0.660 (2) Å out of the plane formed by the remaining ring atoms (r.m.s. deviation = 0.0305 Å). The dihedral angle between the mean planes of the pyran and cyclohexanone rings is 12.95 (6)°. In the crystal, molecules are linked via C—H...O hydrogen bonds, leading to chains running along [011].