(E)-1,3-Dimethyl-2,6-diphenylpiperidin-4-one O-(phenoxycarbonyl)oxime
نویسندگان
چکیده
The title piperidine derivative, C26H26N2O3, has an E conformation about the N=C bond. The piperidine ring has a chair conformation and its mean plane is almost perpendicular to the attached phenyl rings, making dihedral angles of 87.47 (9) and 87.34 (8)°. The planes of these two phenyl rings are inclined to one another by 60.38 (9)°. The plane of the terminal phenyl ring is tilted at an angle of 32.79 (9)° to the mean plane of the piperidine ring. The mol-ecular conformation is stabilized by two intra-molecular C-H⋯O contacts. There are no significant inter-molecular inter-actions in the crystal.
منابع مشابه
(E)-3-Methyl-2,6-diphenylpiperidin-4-one O-(3-methylbenzoyl)oxime
In the title compound, C26H26N2O2, the piperidine ring exhibits a chair conformation. The phenyl rings are attached to the central heterocycle in an equatorial position. The dihedral angle between the planes of the phenyl rings is 57.58 (8)°. In the crystal, C-H⋯O inter-actions connect the mol-ecules into zigzag chains along [001].
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In the title compound, C22H26N2O3, the piperidine ring exhibits a chair conformation. The phenyl rings attached to the piperidine at the 2- and 6-positions have axial orientations. These rings make a dihedral angle of 49.75 (11)°. The amino-oxy acetate group attached at the 4-position has an equatorial orientation. In the crystal, inversion dimers linked by pairs of C-H⋯π inter-actions occur.
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In the mol-ecule of the title compound, C(21)H(22)ClNO(2), the piperidine ring adopts a distorted boat conformation. The two phenyl rings are nearly orthogonal to each other with a dihedral angle of 87.1 (1)°. In the crystal structure, the mol-ecules are linked into a three-dimensional network by C-H⋯O and C-H⋯π inter-actions.
متن کامل(E)-3-Isopropyl-1-methyl-2,6-diphenylpiperidin-4-one O-nicotinoyl oxime
In the title compound, C27H29N3O2, the piperidine ring exists in a chair conformation with an equatorial orientation of the phenyl and methyl substituents. The C-C=N bond angles are significantly different [119.1 (2) and 127.2 (2)°]. The phenyl rings are inclined to one another by 44.90 (14)°, and by 80.85 (13) and 79.62 (12)° to the mean plane of the piperidine ring. The terminal pyridine ring...
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In the title compound, C(11)H(14)N(4)O(4)·C(2)HCl(3)O(2), the dioxolane ring adopts an envelope conformation. Doxophylline [7-(1,3-dioxolan-2-yl-meth-yl)-1,3-dimethyl-3,7-dihydro-1H-purine-2,6-dione] and trichloro-acetic acid mol-ecules are linked by O-H⋯N and C-H⋯O hydrogen bonds.
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