In the title compound, C~21~H~21~NOS, the oxazine ring is not planar and displays a half-chair conformation. The phenyl and naphthalene ring systems make a dihedral angle of 78.65β (7)Β°.
2-Benzyl-2,3-dihydro-1H-naphtho[1,2-e][1,3]oxazine
β Scribed by Yang, Xu-Hong ;Chen, Xiu-Ling ;Diao, Xiang-Ju ;Wu, Ming-Hu
- Publisher
- International Union of Crystallography
- Year
- 2007
- Tongue
- English
- Weight
- 544 KB
- Volume
- 63
- Category
- Article
- ISSN
- 1600-5368
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β¦ Synopsis
In the title molecule, C 19 H 17 NO, the dihedral angle between the naphthyl fused-ring system and the phenyl ring is 17.4 (1) . In the absence of hydrogen-bonding interactions andstacking interactions, the crystal structure is stabilized by van der Waals interactions.
π SIMILAR VOLUMES
In the title compound, C 24 H 17 Cl 2 NO, the oxazine ring is distorted and adopts an envelope conformation. The dihedral angle between the dichlorophenyl ring and the naphthyl system is 85.30 ( 13) . An intramolecular N-HΓ Γ ΓCl hydrogen bond is observed.
In the molecule of the title compound, C~18~H~12~FNO~2~, the oxazine ring is not planar and has a flattened boat conformation The dihedral angle between the benzene ring and the naphthalene system is 78.4β (3)Β°. In the crystal structure, intermolecular NβH...O hydrogen bonds link the molecules into d
## Abstract magnified image Naphtho[2,1β__b__]pyran nuclei are prevalent in natural products with significant biological and medicinal properties. 3,3βDisubstituted 3__H__βnaphtho[2,1__βb__]pyrans are photochromic and find use in electronic display systems, ophthalmic lenses, optical switches, and