THE sesquiterpene precapnelladiene (1) , recently isolated from the soft coral CupneZZa imbricata,l is thought to be ... Published on 01 January 1980. Downloaded by google on 20/02/2016 08:07:39. ... View Article Online / Journal Homepage / Table of Contents for this issue ... Alkylation (IE3utLi, hexamethylphosphoric triamide) of the dihydrobenzene obtained by Birch reduction of resorcinol dimethyl ether,8 with 5-iodohex- 1-ene gave (74O4,) the ...