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In the title compound, the pyran and pyrone rings adopt slightly distorted half-chair and envelope conformations, respectively. In the crystal, C—HO and π–π interactions connect the molecules, forming double layers that stack along the c-axis direction.
organic compounds
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In the title compound, C30H30Cl2N2O3, the indole ring system is roughly planar, with a maximum deviation of 0.1039 (18) Å for the carbonyl C atom, and makes a dihedral angle of 86.61 (9)° with the mean plane of the pyrrolidine ring. This spiro pyrrolidine ring adopts an envelope conformation with the N atom at the flap position. The pyrrole ring of the indole ring system adopts a twisted conformation on the C—C(=O) bond. The molecular structure is stabilized by an intramolecular C—HO hydrogen bond, which generates an S(6) ring motif, and a π–π interaction [centroid–centroid distance = 3.6577 (12) Å] involving the 2,4-dichlorophenyl ring and the benzyl ring. In the crystal, molecules are linked via C—HO hydrogen bonds, forming C(9) chains running parallel to [10-1].
organic compounds
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In the title compound, C25H23NO4, the pyran ring of the chroman moiety has an envelope conformation with the methylene C atom as the flap. The isoxazole ring has a twist conformation on the O—C bond. The dihedral angle between their mean planes is 57.87 (9)°. The attached phenyl and benzene rings are twisted away from its mean plane by 56.19 (10) and 50.57 (10)°, respectively. These two rings are normal to each other, subtending a dihedral angle of 89.2 (1)°. In the crystal, there are no classical hydrogen bonds; the molecules are linked via C—Hπ interactions, forming a two-dimensional network lying parallel to (10-1).
organic compounds
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In the title compound, C29H29BrN2O3, the indole ring system is essentially planar (r.m.s. deviation = 0.079 Å) and makes a dihedral angle of 85.23 (10)° with the mean plane of the 4-methylpyrrolidine ring. This ring adopts an envelope conformation with the N atom at the flap. The pyrrolidine ring of the indole ring system adopts a twisted conformation on the C—C(=O) bond. The molecular structure is stabilized by an intramolecular C—HO hydrogen bond, which generates an S(6) ring motif. In the crystal, molecules are linked via pairs of C—HO hydrogen bonds, forming inversion dimers with an R22(14) ring motif. These dimers are further linked by N—HO and C—HO hydrogen bonds, forming two-dimensional networks lying parallel to (10-1).
organic compounds
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In the title compound, C27H24Cl2N2O3, the indole ring system is essentially planar, with a maximum deviation of 0.082 (2) Å for the carbonyl C atom. It makes a dihedral angle of 88.53 (6)° with the mean plane of the 4-methylpyrrolidine ring, which adopts an envelope conformation with the N atom at the flap position. The molecular structure is stabilized by intramolecular C—HO hydrogen bonds, which generate S(6) and S(7) ring motifs, and an intramolecular π–π interaction involving the benzyl and dichloro-substituted benzene rings [centroid–centroid distance = 3.6291 (11) Å]. In the crystal, molecules are linked via N—HO hydrogen bonds, forming C(7) chains running parallel to [10-1].
organic compounds
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In the title solvate, C29H30N2O3·CHCl3, the dihedral angle between the indole ring system (r.m.s. deviation = 0.050 Å) and the 4-methylpyrrolidine ring is 88.88 (8)°. The latter ring adopts an envelope conformation with the N atom as the flap. Its mean plane makes dihedral angles of 86.94 (11) and 42.08 (9)° with the phenyl and dimethylbenzene rings, respectively. The molecular conformation is stabilized by intramolecular C—HO hydrogen bonds, which generate S(6) and S(9) ring motifs. The chloroform solvent molecule is linked to the organic molecule by a C—HO hydrogen bond involving the carbonyl O atom of the carboxylate group. In the crystal, molecules are linked via bifurcated N—H(N,O) and C—HO hydrogen bonds, forming chains propagating along [001].
organic compounds
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In the title compound, C11H10O4, the methyl acrylate substituent adopts an extended E conformation with all torsion angles close to 180°. The conformation of the keto group with respect to the olefinic double bond is typically S-trans. In the crystal, molecules are linked via pairs of C—HO hydrogen bonds, forming inversion dimers with an R22(8) graph-set motif. The dimers are further linked via C—HO hydrogen bonds, forming chains along [001], which enclose R32(16) graph-set ring motifs. The keto group O atomaccepts two C—HO interactions.
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In the title compound, C35H31N3O5S, the piperidine ring adopts an envelope conformation, with the methine C atom as the flap, and the pyran ring adopts a sofa conformation. The mean planes of these two rings are almost normal to one another, making a dihedral angle of 85.96 (5)°. The two phenyl rings, one attached to the pyrazole ring and the other to the pyran ring, are inclined to one another by 65.41 (11)°. They are inclined to the mean planes of the rings to which they are attached by 12.59 (11) and 70.09 (9)°, respectively. There is an intramolecular C—Hπ interaction involving the tosylate methyl group and the phenyl ring attached to the pyrazole ring. In the crystal, molecules are linked by C—Hπ interactions, forming ribbons parallel to (10-2). The ribbons are linked by slipped parallel π–π interactions involving inversion-related pyrazole rings [inter-centroid distance = 3.672 (2) Å], forming slabs parallel to (001). A preliminary report of this structure has been published [Bakthadoss et al. (2014). Eur. J. Org. Chem. pp. 1505–1513].