(1R,8R,11R)-3,3,11-Trimethyl-6,6-ethylenedioxybicyclo[6.3.0]undecan-2-one and (1R,2R,8R,11R)-3,3,11-trimethyl-6,6-ethylenedioxybicyclo[6.3.0]undecan-2-ol

Abstract

The reduction of (1R,8R,11R)-3,3,11-tri­methyl-6,6-ethyl­ene­dioxy­bi­cyclo­[6.3.0]­undecan-2-one, C16H26O3, (I), gave exclusively an alcohol, C16H28O3, (II). The stereochemistry of the hydroxyl group in (II) was shown as R. The conformation around the eight-membered carbocycle in (I) differs markedly from that in (II).