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In the title compound, C27H30N2O4, the pyrrolidine ring adopts a twisted conformation. The indoline ring system is almost perpendicular to the mean plane of the pyrrolidine ring, making a dihedral angle of 81.7 (8)°. In the crystal, molecules are linked into centrosymmetric dimers with graph-set motif R22(16) via pairs of C—H
O hydrogen bonds. The terminal ethyl group of the ester group is disordered over two sets of sites, with a site-occupancy ratio of 0.587 (11):0.413 (11).
O hydrogen bonds. The terminal ethyl group of the ester group is disordered over two sets of sites, with a site-occupancy ratio of 0.587 (11):0.413 (11).organic compoundsOpen access
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In the title compound, C26H31NO4, the five-membered rings of the central pyrrolizine system adopt N-envelope conformations. The ethyl acetate group adopts an extended conformation. The dihedral angle between the benzene rings is 36.6 (1)°. In the crystal, C—HO hydrogen bonds form a zigzag chain running along the b-axis directions. The crystal structure is futher consolidated by C—Hπ interactions.
O hydrogen bonds form a zigzag chain running along the b-axis directions. The crystal structure is futher consolidated by C—Hπ interactions.organic compoundsOpen access
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In the title compound, C22H14S, the r.m.s. deviation from the mean plane of the four-fused-ring naphthothiophene unit is 0.056 Å. The dihedral angle between the naphthothiophene plane and the pendant phenyl ring is 67.24 (6)°. In the crystal, weak C—Hπ and π–π stacking [minimum centroid–centroid separation = 3.7466 (10) Å] interactions are observed, which together lead to (010) sheets.
π and π–π stacking [minimum centroid–centroid separation = 3.7466 (10) Å] interactions are observed, which together lead to (010) sheets.organic compoundsOpen access
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The asymmetric unit of the title compound, C10H8O3, contains two independent molecules, both of which are almost planar (r.m.s deviations for all non-H atoms of 0.044 and 0.053 Å). The dihedral angles between the benzene ring and the prop-1-yne group are 3.47 (1) and 3.07 (1)° in the two molecules, and the prop-1-yne groups adopt extended conformations. In each molecule, an intramolecular O—HO hydrogen bond involving the OH and aldehyde substituents forms an S(6) ring. In the crystal, molecules are linked into cyclic centrosymmetric dimers via C—HO hydrogen bonds, generating R22(14) ring motifs. The crystal structure is further stabilized by aromatic π–π stacking interactions between the benzene rings [centroid–centroid distances = 3.813 (2) and 3.843 (2) Å]
O hydrogen bond involving the OH and aldehyde substituents forms an S(6) ring. In the crystal, molecules are linked into cyclic centrosymmetric dimers via C—HO hydrogen bonds, generating R22(14) ring motifs. The crystal structure is further stabilized by aromatic π–π stacking interactions between the benzene rings [centroid–centroid distances = 3.813 (2) and 3.843 (2) Å]
