The first total synthesis of (+/-)-Sinulariol-B, a marine cembrandiol, was
achieved in ten steps and similar to 10% overall yield from E-geraniol (8).
The key steps were the coupling of sulfone 7 with allylic chloride 6 and t
he macrocyclization of precursor 5 by sulfone- and thioether-stabilized car
banionic alkylations, respectively. (C) 1998 Published by Elsevier Science
Ltd. All rights reserved.