Copper‐Catalyzed Regioselective Oxidative Cycloamidation of
<i>α</i>
‐[(
<i>β</i>
‐Dimethylamino)propenoyl]‐Alkylamides: Synthetic Route to Substituted Pyrrolidine‐2,4‐diones
作者:Jingwen Yuan、Chitturi Bhujanga Rao、Yongjiu Liang、Rui Zhang、Qian Zhang、Liman Hou、Dewen Dong
DOI:10.1002/adsc.201801237
日期:2019.1.11
An intramolecular oxidative amidation of varied α‐[(β‐dimethylamino)propenoyl]‐alkylamides catalyzed by copper(II) bromide in the presence of PIFA and TFA has been described. This process features mild reaction conditions, simple execution, good yields, high regioselectivity, and thereby, provides not only a facile and efficient protocol for the construction of C−N bond, but also a straightforward
已经描述了在PIFA和TFA存在下,溴化铜(II)催化的各种α -[(β-二甲基氨基)丙烯酰基]-烷基酰胺的分子内氧化酰胺化反应。该过程的特点是反应条件温和,操作简单,收率高,区域选择性高,因此不仅为构建C-N键提供了简便有效的方法,而且为直接合成高密度取代的吡咯烷-2,4提供了简便的方法。 -diones。