(<i>E</i>)- and (<i>Z</i>)-Stereodefined Enol Sulfate Esters Derived from α-Aryl Aldehydes: Stereocomplementary Synthesis of Styryl Sulfate Natural Products
作者:Shuai Yu、Feng Li、Sanghee Kim
DOI:10.1021/acs.joc.7b00868
日期:2017.7.7
of enol sulfate esters from α-aryl aldehydes is described. This method involved the stereocontrolled enolization of a carbonyl group with DBU or t-BuOK followed by trapping with a reactive sulfurylimidazoliumsalt, providing the corresponding styryl enol sulfate esters in good to excellent yields and stereoselectivities. This method was applied to the first total synthesis of the enol sulfate natural