Direct synthesis of alkylated 4-hydroxycoumarin derivatives <i>via</i> a cascade Cu-catalyzed dehydrogenation/conjugate addition sequence
作者:Zhiliang Chen、Hongyi Li、Yanjing Liao、Mengqi Wang、Weiping Su
DOI:10.1039/d3cc01960h
日期:——
An efficient approach for the direct synthesis of alkylated 4-hydroxycoumarin derivatives via a Cu-catalyzed cascade dehydrogenation/conjugate addition sequence starting from simple saturatedketones and 4-hydroxycoumarins has been developed. This protocol features excellent functional-group tolerance, easy scale-up, and a broad substrate scope including bioactive molecules. More importantly, a series