C. Huynh et al., A SHORT AND EFFICIENT SYNTHESIS OF (3E,5Z)-1,3,5-UNDECATRIENE FROM (1E)-1-CHLORO-1,3-BUTADIENE, Synthetic communications, 24(16), 1994, pp. 2273-2280
A short synthesis of (3E,5Z)-1,3,5-undecatriene (cis-galbanolene) is d
escribed. The key step is the Pd/Cu-catalyzed coupling reaction of (E)
-1-chloro-1,3-butadiene with 1-alkynes followed by stereoselective zin
c reduction of the triple bond.