Rhodium(III)-Catalyzed Tandem C−H Olefination and Oxidative Cyclization of Aromatic Acids with Acrylates for the Synthesis of (<i>E</i>
)-3-Ylidenephthalides
作者:Wen-Jing Han、Fan Pu、Juan Fan、Zhong-Wen Liu、Xian-Ying Shi
DOI:10.1002/adsc.201700603
日期:2017.10.25
cyclization has been achieved via a rhodium (III)-catalyzed C−H activation of carboxylic acids with acrylates. This strategy provides the direct and efficient construction of biologically relevant (E)-3-ylidenephthalide scaffolds with satisfactory to good yields, and is characterized by stoichiometric reactants, exclusive stereoselectivity, commercially available substrates, mild atmospheric conditions, and