Acta Cryst. (2003). E59, o61-o62  [ doi:10.1107/S1600536802023000 ]

5-Cyano-7-methoxy-2,2-dimethyl-4-oxochroman-6-yl acetate

W. Clegg

Abstract: The spectroscopically uncharacterized title compound, C₁₅H₁₅NO₅, has been identified crystallographically. The assignment of a cyano substituent in preference to the isocyano (isonitrile) alternative can be made on the basis of the refinement and the observed geometry. The pyran ring has a half-chair conformation. The methoxy and acetate ester substituents lie, respectively, approximately in and perpendicular to the aromatic ring.

Online 19 December 2002

Copyright © International Union of Crystallography
IUCr Webmaster