Tryptamine Synthesis by Iron Porphyrin Catalyzed C−H Functionalization of Indoles with Diazoacetonitrile
作者:Katharina J. Hock、Anja Knorrscheidt、Renè Hommelsheim、Junming Ho、Martin J. Weissenborn、Rene M. Koenigs
DOI:10.1002/anie.201813631
日期:2019.3.11
non‐precious metal catalysts is an important research area for the development of efficient and sustainable processes. Herein, we describe the development of iron porphyrin catalyzed reactions of diazoacetonitrile with N‐heterocycles yielding important precursors of tryptamines, along with experimental mechanistic studies and proof‐of‐concept studies of an enzymatic process with YfeX enzyme. By using readily
非贵金属催化剂对CH键的功能化是开发高效和可持续工艺的重要研究领域。在本文中,我们描述了铁卟啉催化的重氮乙腈与N-杂环反应产生重要的色胺的前体的反应,以及用YfeX酶进行酶促过程的实验机理研究和概念验证研究。通过使用现成的FeTPPC1,我们实现了吲哚和吲唑杂环的高效CH功能化。这些转化具有温和的反应条件,出色的收率和宽泛的官能团耐受性,可在克规模上进行,因此可提供独特的流线型获取色胺的途径。