Merging Organocatalysis and Gold Catalysis: Enantioselective Synthesis of Tetracyclic Indole Derivatives through a Sequential Double Friedel-Crafts Type Reaction

被引:112
作者
Loh, Charles C. J. [1 ]
Badorrek, Jan [1 ]
Raabe, Gerhard [1 ]
Enders, Dieter [1 ]
机构
[1] Rhein Westfal TH Aachen, Inst Organ Chem, D-52074 Aachen, Germany
关键词
gold; indoles; multicatalysis; one-pot reaction; organocatalysis; PICTET-SPENGLER REACTIONS; INTERMOLECULAR REACTIONS; ASYMMETRIC CATALYSIS; CASCADE REACTIONS; ALKYLATION; PLATINUM; ALKYNES; CONSTRUCTION; ACTIVATION; ROUTE;
D O I
10.1002/chem.201102793
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
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 drugs, such as DNA intercalators. Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:13409 / 13414
页数:6
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