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Updated: May 10, 2026

Facile Preparation of 4-Substituted Quinazoline Derivatives
Published on: February 15, 2016
3-[2-(3-Phenyl-2-oxo-1,2-di-hydro-quin-oxalin-1-yl)eth-yl]-1,3-oxazolidin-2-one
Ballo Daouda1, Mouhamadou Lamine Doumbia, El Mokhtar Essassi
1Laboratoire de Chimie Organique Hétérocyclique URAC 21, Pôle de Compétences, Pharmacochimie, Avenue Ibn Battouta, BP 1014, Faculté des Sciences, Université Mohammed V-Agdal, Rabat, Morocco.
Abstract:
The di-hydro-quinoxaline ring system of the title mol-ecule, C19H17N3O3, is approximately planar [maximum deviation = 0.050 (2) Å], the dihedral angle between the planes through the two fused rings being 4.75 (8)°. The mean plane through the fused-ring system forms a dihedral angle of 30.72 (5)° with the attached phenyl ring. The mol-ecular conformation is enforced by C-H⋯O hydrogen bonds. In the crystal, mol-ecules are linked by weak C-H⋯O hydrogen bonds, forming a three-dimensional network.
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