Ethyl 5-bromo-3-eth-oxy-carbonyl-amino-1-benzofuran-2-carboxyl-ate

Acta Crystallogr Sect E Struct Rep Online. 2013 Mar 1;69(Pt 3):o342. doi: 10.1107/S1600536813002997. Epub 2013 Feb 6.

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 intra-molecular N-H⋯O hydrogen bond occurs. In the crystal, pairs of weak C-H⋯O hydrogen bonds link the mol-ecules into inversion dimers, which are further linked via strong N-H⋯O hydrogen bonds, generating a zigzag chain extending along [100].