Acta Cryst. (2009). E65, o760  [ doi:10.1107/S1600536809008691 ]

Diethyl 3H-naphtho[2,1-b]pyran-2,3-dicarboxylate

A. M. Asiri and S. W. Ng

Abstract: The sp³-hybridized methine C atom in the title compound, C₁₉H₁₈O₅, lies out of the mean plane of the remaining 13 atoms of the naphthopyran fused-ring system by 0.571 (1) Å, and its H atom occupies a pseudo-equatorial site.

Online 14 March 2009

Copyright © International Union of Crystallography
IUCr Webmaster