Crystal structure of ethyl 2-amino-4-(4-meth­oxy­phen­yl)-4H-1-benzothieno[3,2-b]pyran-3-carboxyl­ate

Acta Crystallographica Section E: Crystallographic Communications

El Yazidi, M.²  Bakhouch, M.⁴  Saadi, M.⁴  El Ammari, L.⁷  Kerbal, A.⁷ 

[1] Mohammed V, Avenue Ibn Battouta, BP 1014, Rabat, Morocco;des Sciences, Dhar Mehraz, BP 1796 Atlas, 30000 Fes, Morocco;des Sciences, UniversitéDéLaboratoire de Chimie du Solide Appliquée, Facultépartement de Chimie, Faculté

关键词: CRYSTAL STRUCTURE;    THIOAURONES;    HYDROGEN BONDING;   

DOI  :  10.1107/S2056989015008154

学科分类：数学（综合）

来源: International Union of Crystallography

【 摘 要 】

The mol­ecule of the title compound, C21H19NO4S, features a fused ring system whereby a five-membered ring is flanked by two six-membered rings. This is linked to an ethyl 3-carboxyl­ate group and to a meth­oxy­benzene group. The fused-ring system is quasi-planar, with the greatest deviation from the mean plane being 0.131 (1) Å for the methine C atom. The plane through the meth­oxy­benzene ring is nearly perpendicular to that through the fused-ring system, as indicated by the dihedral angle of 85.72 (6)°. An intra­molecular N—H⋯O hydrogen bond is noted. In the crystal, mol­ecules are linked by N—H⋯O hydrogen bonds, forming layers that stack along the a axis.

【 授权许可】

CC BY