1-(5-Hydroxy-2,2,8,8-tetramethyl-2H,8H-pyrano[2,3-f]chromen-6-yl)ethanone

In the title compound, C18H20O4,the pyran ring of the chromene unit adopts a half-chair conformation. An intramolecular O—H...O hydrogen bond occurs. In the crystal, molecules are linked along the b axis by C—H...O hydrogen bonds.

Bibliographic Details
Main Authors: Sunayna Pawar, Adele Cheddie, Bernard Omondi, Neil Anthony Koorbanally
Format: Article
Language:English
Published: International Union of Crystallography 2012-10-01
Series:Acta Crystallographica Section E
Online Access:http://scripts.iucr.org/cgi-bin/paper?S160053681204055X