作者:Graeme Barker、Madeha R. Alshawish、Melanie C. Skilbeck、Iain Coldham
DOI:10.1002/anie.201303442
日期:2013.7.22
Quaternary stereocenters: Chiral α‐magnesiated nitriles can be formed by deprotonation and are configurationally stable at low temperature, even for acyclic examples. These can be trapped with electrophiles to give enantiomerically enriched quaternary substituted products (see scheme; TMP=2,2,6,6‐tetramethylpiperidine).
第四级立体中心:手性α-镁化的腈可以通过去质子化反应形成,即使在无环结构的情况下,也可以在低温下保持构型稳定。这些可以被亲电试剂捕获,得到对映体富集的季取代产物(参见方案; TMP = 2,2,6,6-四甲基哌啶)。