Generation of Organolithium Compounds bearing Super Silyl Ester and their Application to Matteson Rearrangement
作者:Susumu Oda、Hisashi Yamamoto
DOI:10.1002/anie.201304225
日期:2013.7.29
It's super‐silyl‐fragilithyl‐ester‐aryl‐docious: The super silyl group is a strong protecting group for carboxylic acids and provides a method for direct lithiation that is compatible with the ester moiety. Organolithium compounds bearing a super silyl ester react with a variety of electrophiles in high yields (see scheme). The reaction of lithiated super silyl chloroacetate with a boron compound gives
它是超级甲硅烷基-脆弱基-酯-芳基-docious:超级甲硅烷基是羧酸的强保护基团,提供了一种与酯部分相容的直接锂化方法。带有超级甲硅烷基酯的有机锂化合物可以与多种亲电子试剂发生高产率反应(参见方案)。锂化超级氯乙酸硅酯与硼化合物的反应通过 Matteson 重排产生酯部分的 α-官能化。