Chlorosulfonic acid catalyzed cyclization reaction of beta-monocyclone
rolidol and beta-monocyclofarnesol and corresponding acetates gave a u
nique rearranged product (2S, 3S*, 4aR*, 5,5,8a-tetramethyl-2H-2,4a-m
ethanonaphthalen-3-ol, the structure of which was elucidated by X-ray
analysis.