Palladium-Catalyzed Bisolefination of C−C Triple Bonds: A Facile Method for the Synthesis of Naphthalene Derivatives
摘要:
A highly efficient and mild palladium-mediated bisolefination of C-C triple bonds is described for the first time. With different types of olefin employed, this reaction terminates in diverse fashions. In addition to the merit of using oxygen as the sole oxidant, this reaction exhibits high reactivities and functionality tolerance simultaneously, thus providing a promising method for the synthesis of naphthalene derivatives.
A Pd(II)-catalyzed mild and highly regioselective 6-endo cyclization/alkylation reaction of o-(alkynyl)styrenes with simple allylic alcohols has been developed. Under mild reaction conditions, the vinyl palladium species generated in situ after cyclization could insert a C-C double bond of allylic alcohol through a cross-coupling reaction and led to the formation of (alkyl)naphthalenes. This cascade