Construction of Chiral Tricyclic Indoles through a Rhodium-Catalyzed Asymmetric Arylation Protocol

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• 作者：Chun-Yan Wu ; Yue-Na Yu ; Ming-Hua Xu
• 刊名：Organic Letters
• 出版年：2017
• 出版时间：January 20, 2017
• 年：2017
• 卷：19
• 期：2
• 页码：384-387
• 全文大小：369K
• ISSN：1523-7052

文摘

A rhodium/diene complex catalyzed asymmetric 1,4-addition of arylboronic acids to indole-derived α,β-unsaturated esters to access highly enantioenriched 3-(1H-indol-2-yl)-3-arylpropanoates has been developed. By taking advantage of the nucleophilic character of indole at C3 and N1 positions, construction of a series of valuable chiral tricyclic indole frameworks such as 2,3-dihydro-1H-pyrrolo[1,2-a]indoles and cyclopenta[b]indoles can be efficiently achieved.