Abstract
In the title compound, C18H15N3O5S, the approximately planar quinazoline ring system [maximum deviation = 0.097 (3) Å] forms a dihedral angle of 76.53 (19)° with the phenyl ring. The terminal -C(=O)—O—C group is disordered over two sets of sites with a site-occupancy ratio of 0.811 (17):0.189 (17). In the crystal, molecules are linked via weak C—H⋯O hydrogen bonds into sheets parallel to the ac plane.
Highlights
0.097 (3) Å] forms a dihedral angle of 76.53 (19) with the phenyl ring
The terminal -C( O)—O—C group is disordered over two sets of sites with a site-occupancy ratio of
The cell e.s.d.'s are taken into account individually in the estimation of e.s.d.'s in distances, angles and torsion angles; correlations between e.s.d.'s in cell parameters are only used when they are defined by crystal symmetry
Summary
University, Riyadh 11451, Saudi Arabia, bDepartment of Medicinal Chemistry., Faculty of Pharmacy, University of Mansoura, Mansoura 35516, Egypt, cDepartment of Organic Chemistry, Faculty of Pharmacy, Al-Azhar University, Cairo 11884, Egypt, and dX-ray Crystallography Unit, School of Physics, Universiti Sains Malaysia, 11800 USM, Penang, Malaysia. Key indicators: single-crystal X-ray study; T = 296 K; mean (C–C) = 0.007 Å; disorder in main residue; R factor = 0.064; wR factor = 0.191; data-to-parameter ratio = 12.4. C18H15N3O5S, the approximately planar quinazoline ring system [maximum deviation =. 0.097 (3) Å] forms a dihedral angle of 76.53 (19) with the phenyl ring. The terminal -C( O)—O—C group is disordered over two sets of sites with a site-occupancy ratio of. Molecules are linked via weak C—H O hydrogen bonds into sheets parallel to the ac plane
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