Tandem Organocatalysis and Photocatalysis: An Anthraquinone‐Catalyzed Indole‐C3‐Alkylation/Photooxidation/1,2‐Shift Sequence
作者:Stephanie Lerch、Lisa‐Natascha Unkel、Malte Brasholz
DOI:10.1002/anie.201402920
日期:2014.6.16
the development of sequential catalytic processes. Herein, the discovery of an anthraquinone‐catalyzed thermal indole‐C3‐alkylation with benzylamines is described, which can be combined sequentially with a new visible‐light‐driven catalytic photooxidation/1,2‐shift reaction. The one‐flask tandem process converts indoles into 3‐benzylindole intermediates, which are further transformed into new fluorescent
醌具有正交的基态和激发态反应性,因此非常适合用于开发顺序催化过程的有机催化剂。本文描述了蒽醌催化的热吲哚-C3-烷基苄胺的发现,该发现可与新的可见光驱动的催化光氧化/ 1,2-转移反应相结合。单烧瓶串联过程将吲哚转化为3-苄基吲哚中间体,然后将其进一步转化为新的2,2-二取代的吲哚啉-3-酮荧光衍生物。