Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Wieland-Miescher ketone is a racemic bicyclic diketone (enedione) and is a versatile synthon which has so far been employed in the total synthesis of more than 50 natural products, predominantly sesquiterpenoids, diterpenes and steroids possessing possible biological properties including anticancer, antimicrobial, antiviral, antineurodegenerative and immunomodulatory activities. The reaction is named after two chemists from Ciba Geigy,