In this paper, we described the synthesis of the main bioactive components
of queen bee pheromones, queen substance 9-oxo-2E-decenoic acid (1) and sti
nk-odour inhibitor 9-hydroxy-2E-decenoic acid (2) from natural oleic acid.
The key intermediate 9-heptadecene-2-one (5) was obtained by PdCl2(PPh3)(2)
catalytic decarboxylation of oleic acid and followed by Wacker oxidation.
The synthesis of the trace components, 4-hydroxy-3-methoxyphenylethanol (3)
, is also reported.