Acta Crystallographica Section E

Volume 67, Part 8 (August 2011)

organic compounds

bh2365 scheme

Acta Cryst. (2011). E67, o2106 [ doi:10.1107/S1600536811027152 ]

Ethyl 2-amino-4-phenyl-4H-1-benzothieno[3,2-b]pyran-3-carboxylate

A. Boughaleb, H. Zouihri, S. Gmouh, A. Kerbal and M. El yazidi

Abstract: The title heterocyclic compound, C₂₀H₁₇NO₃S, was synthesized by condensation of ethyl cyanoacetate with (Z)-2-benzylidenebenzo[b]thiophen-3(2H)-one in the presence of a basic catalyst in ethanol. The phenyl and ester groups make dihedral angles of 77.67 (6) and 8.52 (6)°, respectively, with the benzothienopyran ring system [maximum r.m.s. deviation = 0.1177 (13) Å]. In the crystal, centrosymmetric dimers are formed through pairs of N-HO hydrogen bonds between the amine and ester groups. Intermolecular C-HN hydrogen bonds and C-H [pi] interactions involving the thiophene ring are also observed.


	Hyper-Text Markup Language (HTML) file (62.6 kbytes) [ doi:10.1107/S1600536811027152/bh2365sup0.html ] Supplementary materials

	Chemical Markup Language (CML) file (6.5 kbytes) [ doi:10.1107/S1600536811027152/bh2365Isup3.cml ] Supplementary material

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