Acta Cryst. (2013). E69, o342
[ doi:10.1107/S1600536813002997 ]

Ethyl 5-bromo-3-ethoxycarbonylamino-1-benzofuran-2-carboxylate

P. Karunakar, V. Krishnamurthy, C. R. Girija, V. Krishna, V. P. Vaidya and A. J. Yamuna

Abstract: In the title compound, C₁₄H₁₄BrNO₅, the ester group is disordered [occupancy ratio 0.52 (2):0.48 (2)]. The major component is nearly coplanar with the benzofuran plane, subtending a dihedral angle of 7.84 (2)°, while the amide group is twisted out of the benzofuran plane making a dihedral angle of 39.69 (2)°. An intramolecular N-HO hydrogen bond occurs. In the crystal, pairs of weak C-HO hydrogen bonds link the molecules into inversion dimers, which are further linked via strong N-HO hydrogen bonds, generating a zigzag chain extending along [100].

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