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

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Summary

Structure Reports

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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