Acta Cryst. (2001). E57, o1070-o1072  [ doi:10.1107/S1600536801016324 ]

1-Acetyl-3-(benzofuran-3-yl)-1,2-dihydro-3-hydroxy-2-oxo-3H-indole

A. Usman, I. A. Razak, H.-K. Fun, S. Chantrapromma, Y. Zhang and J.-H. Xu

Abstract: In the title compound, C₁₈H₁₃NO₄, both the indole and benzofuran moieties are nearly planar, and are in an equatorial configuration relative to each other. The O atom of the acetyl group is involved in a weak intramolecular C-HO hydrogen bond with the indole, and a stronger intermolecular O-HO hydrogen bond with the hydroxy group, which stabilize the molecular and crystal-packing structures.

Online 20 October 2001

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