Lewis Acid Catalyzed Direct Cyanation of Indoles and Pyrroles with N-Cyano-N-phenyl-p-toluenesulfonamide (NCTS)

被引:136
作者
Yang, Yang
Zhang, Yan
Wang, Jianbo [1 ]
机构
[1] Peking Univ, Beijing Natl Lab Mol Sci BNLMS, Beijing 100871, Peoples R China
关键词
C-H FUNCTIONALIZATION; ARYL HALIDES; ELECTROPHILIC CYANATION; CONVENIENT PROCEDURE; EFFICIENT SYNTHESIS; AROMATIC NITRILES; REAGENT; BROMIDES; ROUTE; BONDS;
D O I
10.1021/ol202335p
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
BF3 center dot OEt2-catalyzed direct cyanation of indoles and pyrroles using a less toxic, bench-stable, and easily handled electrophilic cyanating agent N-cyano-N-phenyl-para-toluenesulfonamide (NCTS) affords 3-cyanoindoles and 2-cyanopyrroles in good yields with excellent regioselectivity. The substrate scope is broad with respect to indoles and pyrroles.
引用
收藏
页码:5608 / 5611
页数:4
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