The asymmetric alkylation of dimethylhydrazones; intermolecular chirality transfer using sparteine as chiral ligand
作者:Christina M. McSweeney、Vera M. Foley、Gerard P. McGlacken
DOI:10.1039/c4cc06895e
日期:——
The asymmetric alkylation of ketones represents a fundamental transformation in organic chemistry. Chiral auxiliaries have been used almost exclusively for this transformation. Herein we describe a strategy for the generation of enantiomerically enriched α-alkylated ketones up to an er of 83 : 17, using a chiral ligand protocol.
酮的非对称烷基化代表了有机化学中的一种基本转化。手性辅助剂几乎是唯一用于这种转化的方法。在此,我们描述了一种生成对映体富集的α-烷基化酮的策略,使用手性配体方案,其对映体比可达到83 : 17。