99 research outputs found
(±)-trans-5-Benzoyl-2-(1H-indol-3-yl)-4-phenyl-4,5-dihydrofuran-3-carbonitrile
The furan ring in the title compound, C26H18N2O2, is twisted about the C(H)—C(H) bond. The molecular structure is stabilized by an intramolecular C—H⋯O interaction, which generates an S(6) ring motif. The presence of N—H⋯N hydrogen bonds leads to inversion dimers, which are stabilized in the crystal packing by C—H⋯O and C—H⋯π interactions, forming layers that stack along the a axis
Ethyl 2-acetyl-3-(4-chloroanilino)butanoate
The title compound, C14H18ClNO3, adopts an extended conformation, with all of the main chain torsion angles associated with the ester and amino groups trans. In the crystal, inversion dimers linked by pairs of N—H⋯O hydrogen bonds are observed
1,1′-(p-Phenylenedimethylene)dipiperidin-4-one
In the molecule of the title compound, C18H24N2O2, the piperidine rings are in chair conformations. The crystal structure is stabilized by intermolecular C—H⋯O hydrogen bonding. There are neither C—H⋯π nor π–π interactions in the structure
2,3,6-Triphenylpiperidin-4-one
In the title molecule, C23H21NO, the piperidine ring adopts a chair conformation, with the N and carbonyl C atoms as flaps, which deviate on either side of the chair by −0.706 (3) and 0.494 (3) Å, respectively. All three phenyl rings are in equatorial positions on the piperidine ring, making angles with the puckering plane of 73.5 (1), 73.1 (1) and 67.2 (1)°. Though there is no classical hydrogen bonding, the crystal is stabilized by intermolecular C—H⋯π contacts and π–π stacking interactions involving phenyl rings [centroid–centroid distance = 4.424 (2) Å]
1,1′-[4-(2-Methoxyphenyl)-2,6-dimethyl-1,4-dihydropyridine-3,5-diyl]diethanone
In the title compound, C18H21NO3, the 1,4-dihydropyridine ring exhibits a flattened boat conformation. The methoxyphenyl ring is nearly planar [r.m.s. deviation = 0.0723 (1) Å] and is perpendicular to the base of the boat [dihedral angle = 88.98 (4)°]. Intermolecular N—H⋯O and C—H⋯O hydrogen bonds exist in the crystal structure
(2RS,3SR,10SR,11RS)-3,10-Diphenoxy-18,21-dioxa-5,8-diazapentacyclo[20.4.0.02,5.08,11.012,17]hexacosa-1(26),12,14,16,22,24-hexaene-4,9-dione ethyl acetate hemisolvate
In the title compound, C34H30N2O6·0.5C4H8O2, there are two molecules in the asymmetric unit and the structure is stabilized by C—H⋯O interactions. The two nonsolvent molecules of the asymmetric unit are linked together by a weak C—H⋯O hydrogen bond. The ethyl acetate molecule is present as a space filler and does not participate in the hydrogen-bonding network
7′-(Naphthalen-1-yl)-5′′-[(naphthalen-2-yl)methylidene]-1′,3′,5′,6′,7′,7a′-hexahydrodispiro[acenaphthene-1,5′-pyrrolo[1,2-c]thiazole-6′,3′′-piperidine]-2(1H),4′′-dione
In the title compound, C43H34N2O2S, the six-membered piperidine ring adopts a half-chair conformation. The five-membered thiazole ring adopts a slightly twisted envelope conformation and the pyrrole ring adopts an envelope conformation; in each case, the C atom linking the rings is the flap atom. The molecular structure features inter- and intramolecular C—H⋯O interactions. Furthermore, the crystal packing is stabilized by four intermolecular C—H⋯π interactions
Crystal structure of 2-benzylamino-4-(4-bromo-phenyl)-6,7-dihydro-5H-cyclopenta[b]pyridine-3-carbonitrile
JS and RAN thank the management of The Madura College (Autonomous), Madurai, for their encouragement and support. RRK thanks the University Grants Commission, New Delhi, for funds through Major Research Project F. No. 42–242/2013 (SR).Peer reviewedPublisher PD
5-Benzoyl-2-(1H-indol-3-yl)-4-(4-methylphenyl)-4,5-dihydrofuran-3-carbonitrile
The furan ring in the title compound, C27H20N2O2, adopts a twisted conformation about the sp
3—sp
3 bond. The molecular structure is stabilized by an intramolecular C—H⋯O interaction which generates an S(6) ring motif. The crystal packing is stabilized by N—H⋯O and C—H⋯O interactions generating centrosymmetric R
2
2(18) and C(6) chain motifs, respectively. A weak C—H⋯π interaction is also observed
4-Azido-2-chloro-6-methylquinoline
In the title compound, C10H7ClN4, the quinoline ring system is planar [maximum deviation 0.0035 (10) Å]. The crystal structure is stabilized by van der Waals and π–π stacking interactions [centroid–centroid distance 3.6456 (17) Å]
- …