Lewis Acid Catalyzed Enantioselective Desymmetrization of Donor-Acceptor<i>meso</i>-Diaminocyclopropanes
作者:Daniele Perrotta、Ming-Ming Wang、Jérôme Waser
DOI:10.1002/anie.201800494
日期:2018.4.23
The first Lewis acid catalyzed enantioselective ring‐opening desymmetrization of a donor–acceptor meso‐diaminocyclopropane is reported. The copper(II)‐catalyzed Friedel–Crafts alkylation of indoles and one pyrrole with an unprecedented meso‐diaminocyclopropane delivered enantioenriched, diastereomerically pure urea products, which are structurally related to natural and synthetic bioactive compounds
据报道,路易斯酸首次催化了供体-受体内消旋二氨基环丙烷的对映选择性开环脱对称。铜(II)催化的吲哚和一个吡咯与前所未有的内消旋-二氨基环丙烷的吲哚和一个吡咯烷基化反应提供了对映体富集的,非对映体纯的尿素产品,该产品在结构上与天然和合成的生物活性化合物有关。通过研究未开发的双(恶唑啉)配体亚类,开发新的配体对于实现高对映选择性是必不可少的。