Synthesis of β-Hydroxy-α-haloesters through Super Silyl Ester Directed <i>Syn</i>-Selective Aldol Reaction
作者:Susumu Oda、Hisashi Yamamoto
DOI:10.1021/ol402928p
日期:2013.12.6
Super silyl haloesters including chloro- and bromoacetate were synthesized and utilized for aldol reactions to give syn-β-hydroxy-α-haloacetates in good yields with high diastereoselectivities. β-Hydroxy-α-fluoroacetate was obtained by lithiation of super silyl bromofluoroacetate. Sequential Darzens reactions provided cis-glycidic esters in moderate yields.