Abstract
In the title compound C37H32Cl2N2O4, the unsubstituted pyrrolidine ring shows a twist conformation whereas the substituted pyrrolidine ring shows an envelope conformation. The dimethoxy benzene ring is perpendicular to the tetralone ring, making a dihedral angle of 89.94 (5)°. Molecules are linked into centrosymmetric dimers by N—H⋯O hydrogen bonds and the crystal structure is stabilized by C—H⋯π interactions and C—H⋯O hydrogen bonds. One methoxy group is disordered over two positions with the site occupancy factors of 0.84 (2) and 0.16 (2).
Highlights
In the title compound C37H32Cl2N2O4, the unsubstituted pyrrolidine ring shows a twist conformation whereas the substituted pyrrolidine ring shows an envelope conformation
The dimethoxy benzene ring is perpendicular to the tetralone ring, making a dihedral angle of 89.94 (5)
Molecules are linked into centrosymmetric dimers by N—H O hydrogen bonds and the crystal structure is stabilized by C—H
Summary
(10 S)-4-(3,4-Dichlorophenyl)-10 -(3,5dimethoxyphenyl)-1,2,3,4-tetrahydronaphthalene-2-spiro-20 -pyrrolizidine-30 spiro-30 0 -indoline-1,20 0 -dione. Sriman Narayananb a Department of Physics, Easwari Engineering College, Ramapuram, Chennai. 600 089, India, bDepartment of Analytical Chemistry, University of Madras, Guindy. Chennai 600 025, India., and cDepartment of Physics, SRM University, Ramapuram Campus, Chennai 600 089, India. Key indicators: single-crystal X-ray study; T = 293 K; mean (C–C) = 0.003 Å; disorder in main residue; R factor = 0.057; wR factor = 0.192; data-to-parameter ratio = 26.1
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