Acta Cryst. (2006). E62, o1075-o1076 [ doi:10.1107/S1600536806005125 ]
Abstract: The crystal structure of the title compound, C21H18O3, has been determined to establish the relative stereochemistry at the spiro ring junction. Each O atom adjacent to the junction lies axial to the neighbouring ring; this is presumably due to anomeric effects.
Online 22 February 2006
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