作者:Jonathan Clayden、Madeleine Helliwell、Catherine McCarthy、Neil Westlund
DOI:10.1039/b004682p
日期:——
The electron-withdrawing amide group causes problems in the diastereoselective functionalisation of enolates derived from atropisomeric phenyl esters, but a strategy based on atroposelective nucleophilic addition to a chiral aldehyde followed by stereospecific [3,3] sigmatropic rearrangement allows atropisomeric naphthamides to be used as auxiliaries. The auxiliaries are resolved by dynamic resolution
手性位于旋转受限的阻转异构化合物 芳基–CONR 2键可用作手性助剂。吸电子酰胺基团导致由对映异构苯基酯衍生的烯醇酯的非对映选择性官能化产生问题,但是基于将对映异构性亲核加成到手性化合物上的策略醛随后进行立体定向[3,3]σ重排,可以将阻转异构萘酰胺用作助剂。辅助通过动态分辨率解决阿米纳尔 脯氨酸衍生形成 二胺。