Structure Reports Online

Volume 66, Part 9 (September 2010)

organic compounds

si2282 scheme

Acta Cryst. (2010). E66, o2273-o2274 [ doi:10.1107/S1600536810030758 ]

Arborinol methyl ether from Areca catechu L.

X. He, Y. Li, C. Zhang and X. Hu

Abstract: The title compound isolated from Areca catechu L. (common name: arborinol methyl ether; a member of the arborane family) was established as 3 [alpha] -methoxyarbor-9(11)-ene, C₃₁H₅₂O. Rings A/B/C/D assume a chair conformation, while ring E has an envelope conformation. The absolute configuration was determined to be (3R,5R,8S,10S,13R,14S,17S,18S, 21S) by analysis of Bijvoet pairs based on resonant scattering of light atoms, yielding a Hooft parameter y of -0.03 (3).