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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of ethyl 2-amino-4-(4-meth­oxy­phen­yl)-4H-1-benzothieno[3,2-b]pyran-3-carboxyl­ate
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Crystal structure of ethyl 2-amino-4-(4-meth­oxy­phen­yl)-4H-1-benzothieno[3,2-b]pyran-3-carboxyl­ate

机译:2-氨基-4-(4-甲氧基苯基)-4H-1-苯并噻吩并[3,2-b]吡喃-3-羧酸乙酯的晶体结构

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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.
机译:标题化合物C21H19NO4S的分子具有稠合的环系统,其中五元环的侧面是两个六元环。这与3-羧酸乙酯基和甲氧基苯基相连。稠环系统是准平面的,次甲基C原子与平均平面的最大偏差为0.131(1)Å。如85.72 ring(6)°的二面角所示,通过甲氧基苯环的平面几乎垂直于通过稠环系统的平面。注意到分子内的NH 3 O氢键。在晶体中,分子通过N-H = O氢键连接,形成沿a轴堆叠的层。

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