Two stereocontrolled palladium-catalyzed cross-couplings of 1-alkenyl boronic acids and aryl/alkenyl halides (the Suzuki–Miyaura reaction) are the key steps in an enantioselective approach to the polyene fragment of haminols A and B, alarm pheromones isolated from Haminoea navicula, a Cephalaspidean Opisthobranch mollusc. Chirality rested on the use of (S)-propylene oxide as the starting material.
