Amine Catalysis with Substrates Bearing
<i>N</i>
‐Heterocyclic Moieties Enabled by Control over the Enamine Pyramidalization Direction
作者:Jasper S. Möhler、Tobias Schnitzer、Helma Wennemers
DOI:10.1002/chem.202002966
日期:2020.12
Stereoselective organocatalytic C−C bond formations that tolerate N‐heterocycles are valuable since these moieties are common motifs in numerous chiral bioactive compounds. Such transformations are, however, challenging since N‐heterocyclic moieties can interfere with the catalytic reaction. Here, we present a peptide that catalyzes conjugate addition reactions between aldehydes and nitroolefins bearing a
可以耐受N杂环的立体选择性有机催化C-C键形成是有价值的,因为这些部分是许多手性生物活性化合物中的常见基序。然而,由于N-杂环部分会干扰催化反应,因此这种转化具有挑战性。在这里,我们提出了一种催化醛与硝基烯烃之间的共轭加成反应的肽,该肽具有广泛的不同N-杂环基团,具有碱性和/或H键合位点,且产率和立体选择性优异。烯胺中间体的锥体化方向的调节实现了高的立体选择性。