Copper‐Promoted O‐Arylation of the Phenol Side Chain of Tyrosine Using Triarylbismuthines
作者:Adrien Le Roch、Martin Hébert、Alexandre Gagnon
DOI:10.1002/ejoc.202000790
日期:2020.9.7
for the O‐arylation of the sidechain of tyrosine usingtriarylbismuthreagents is reported. The reaction is performed in dichloromethane under oxygen at 50 °C in the presence of pyridine, is promoted by copper diacetate, shows excellent scope and functional group tolerance, and retains the integrity of the chiral center. The reactivity of other amino acids possessing a nucleophilic sidechain under these