The synthesis of jasmone and related jasmonoids and pyrethroids is described. These types of compounds play a defensive role in plants, and share a cyclopentenone common core, with variations in its side chains. Jasmone, cinerone, allylrethrone and derivatives are synthesized through π-allyl palladium cross coupling of stannane derivatives. By selective hydrogenation dihydrojasmone and dihydrocinerone are also synthesized.
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