Merging Organocatalysis and Gold Catalysis: Enantioselective Synthesis of Tetracyclic Indole Derivatives through a Sequential Double Friedel-Crafts Type Reaction
作者:Charles C. J. Loh、Jan Badorrek、Gerhard Raabe、Dieter Enders
DOI:10.1002/chem.201102793
日期:2011.11.25
Yet another indole miracle: The sequential combination of organocatalysis and gold catalysis on C2,C3‐unsubstituted indoles provides an efficient one‐pot access to tetracyclic indole derivatives in very good yields and excellent enantioselectivities (see scheme). The double Friedel–Crafts type reaction, including a rare 7‐endo‐dig cyclisation, opens a new entry to highly enantioenriched anticancer
另一个吲哚奇迹:在C2,C3未取代的吲哚上有机催化和金催化的顺序结合提供了有效的一锅式获得四环吲哚衍生物的方法,产率很高,对映选择性极好(参见方案)。双弗里德尔-克拉夫茨型反应,其中包括一种罕见的7-内切-挖环化,打开一个新的项,以对映体富集的高度抗癌药物,如DNA嵌入。