1β-(4-Methoxybenzyl)-8α-vinyl-7-oxabicyclo[4.3.0]nonan-6β-ol

The crystal structure analysis of 1β-(4-methoxybenzyl)-8α-vinyl-7-oxabicyclo[4.3.0]nonan-6β-ol, C 18 H 24 O 3 , reveals that the unit cell consists of two dimers, each formed by the linkage of double head-to-head hydrogen bonds between hemiacetal groups.