作者:Tim Bleith、Qing-Hai Deng、Hubert Wadepohl、Lutz H. Gade
DOI:10.1002/anie.201603072
日期:2016.6.27
stereochemical rigidity of the coordination sphere of boxmi/CuII catalysts is key to achieving high enantioselectivity in the electrophilic alkylation of β‐ketoesters, this pathway is outperformed by a radical process for the corresponding catalytic transformation of oxindoles, giving rise to racemic products. For the corresponding ZnII catalysts, the selectivity in the latter process is outstanding despite
尽管boxmi / Cu II催化剂的配位域的立体化学刚度是在β-酮酸酯的亲电烷基化中实现高对映选择性的关键,但该途径却被相应的羟吲哚催化转化的自由基过程所超越,产生了外消旋产物。对于相应的Zn II催化剂,尽管配位壳具有更大的可塑性,但后者的选择性却非常出色。因此,该反应发展成为一种高度有用的合成方法,该方法能够以高收率和对映选择性转化多种底物。