Rhodium- and Platinum-Catalyzed [4+3] Cycloaddition with Concomitant Indole Annulation: Synthesis of Cyclohepta[b]indoles

被引:89
作者
Shu, Dongxu [1 ,2 ]
Song, Wangze [1 ]
Li, Xiaoxun [1 ]
Tang, Weiping [1 ]
机构
[1] Univ Wisconsin, Sch Pharm, Madison, WI 53705 USA
[2] Univ Wisconsin, Dept Chem, Madison, WI 53705 USA
关键词
cycloaddition; heterocycles; homogeneous catalysis; transition metals; CYCLOPROPANATION COPE REARRANGEMENT; FISCHER CARBENE COMPLEXES; ACTINOPHYLLIC ACID; DIASTEREOSELECTIVE SYNTHESIS; PROPARGYLIC CARBOXYLATES; 7-MEMBERED RINGS; GOLD CATALYSIS; DERIVATIVES; MIGRATION; ERVITSINE;
D O I
10.1002/anie.201209266
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Various substituted cyclohepta[b]indoles were prepared from propargylic ethers and dienes by a tandem indole annulation/[4+3] cycloaddition (see scheme; Boc=tert-butoxycarbonyl). Both acyclic and cyclic dienes participated in the [4+3] cycloaddition to afford tri- and tetracyclic products, respectively. Electron-deficient phosphine or phosphite ligands facilitated the tandem reaction. © 2013 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.
引用
收藏
页码:3237 / 3240
页数:4
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