Crystal structure of (E)-2-benzyl-idene-4-[(3-phenyl-4,5-di-hydro-isoxazol-5-yl)meth-yl]-2H-benzo[b][1,4]thia-zin-3(4H)-one.

Nada Kheira Sebbar,Lahcen El Ammari,Mohamed Saadi,El Mokhtar Essassi,Mohamed Ellouz

doi:10.1107/s2056989015009755

Nada Kheira Sebbar, Lahcen El Ammari + Show 3 more

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https://doi.org/10.1107/s2056989015009755

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Abstract

In the title compound, C25H20N2O2S, the dihydroisoxazole ring exhibits an envelope conformation with the methine atom being the flap, while the 1,4-thiazine ring displays a screw-boat conformation. The six-membered ring fused to the 1,4-thiazine ring makes dihedral angles of 63.04 (2) and 54.7 (2)° with the mean planes through the five-membered heterocycle and the attached phenyl ring, respectively. The phenyl group connected to the 1,4-thiazine ring is disordered over two sites [major component = 0.57 (2)]. The most prominent interactions in the crystal structure are C—H⋯O hydrogen bonds that link molecules, forming inversion dimers, and C—H⋯N hydrogen bonds that link the dimers into columns parallel to the b axis.

Highlights

In the title compound, C25H20N2O2S, the dihydroisoxazole ring exhibits an envelope conformation with the methine atom being the flap, while the 1,4-thiazine ring displays a screw-boat conformation
The six-membered ring fused to the 1,4-thiazine ring makes dihedral angles of 63.04 (2) and 54.7 (2) with the mean planes through the five-membered heterocycle and the attached phenyl ring, respectively
The phenyl group connected to the 1,4-thiazine ring is disordered over two sites [major component = 0.57 (2)]

Summary

Introduction

C25H20N2O2S, the dihydroisoxazole ring exhibits an envelope conformation with the methine atom being the flap, while the 1,4-thiazine ring displays a screw-boat conformation. Nada Kheira Sebbar,a Mohamed Ellouz,a El Mokhtar Essassi,a,b* Mohamed Saadic and Lahcen El Ammaric aLaboratoire de Chimie Organique Heterocyclique URAC 21, Pole de Competence Pharmacochimie, Av. Ibn Battouta, BP 1014, Facultedes Sciences, Universite Mohammed V, Rabat, Morocco, bMoroccan Foundation for Advanced Science, Innovation and Research (MASCIR), Rabat Design Center, Rue Mohamed Al Jazouli, Madinat El Irfane, 10100 Rabat, Morocco, and cLaboratoire de Chimie du Solide Appliquee, Facultedes Sciences, Universite Mohammed V, Avenue Ibn Battouta, BP 1014, Rabat, Morocco.

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