An efficient four-step route towards the synthesis of conjugated
1,3-dienes substituted with a terminal SF5-group was
proposed. Key steps of the synthetic sequence are the bromination
of 1-(pentafluoro-λ6-sulfanyl)alk-1-enes followed
by dehydrobromination of the corresponding products.
butadienes - alkenes - pentafluorosulfanyl
group - elimination