Synthesis 2020; 52(11): 1659-1665
DOI: 10.1055/s-0039-1691731
paper
© Georg Thieme Verlag Stuttgart · New York

Cascade Reactions to Substituted 1H-Pyrrole-3-carbonitriles via Ligand-Free Palladium(II)-Catalyzed C(sp)–C(sp2) Coupling

Zijuan Wang
,
Wenteng Chen
,
Haofan Luo
,
Chang He
,
Guolin Zhang
,
Yongping Yu
Zhejiang Province Key Laboratory of Anti-Cancer Drug Research, College of Pharmaceutical Science, Zhejiang University, Hangzhou 310058, P. R. of China   Email: guolinzhang@zju.edu.cn   Email: yyu@zju.edu.cn
› Author Affiliations
This study was supported by the National Natural Science Foundation of China (No. 81602959 to J.S.), Natural Science Foundation of Zhejiang Province (LY18H300001), and Multiple Sclerosis National Research Institute, USA (to W.C.).
Further Information

Publication History

Received: 26 November 2019

Accepted after revision: 08 January 2020

Publication Date:
25 February 2020 (online)


Abstract

An efficient and simple synthesis of substituted 1H-pyrrole-3-carbonitriles was developed. This reaction is a palladium(II)-catalyzed cascade of C(sp)–C(sp2) coupling followed by intramolecular C–N bond formation. The method can tolerate various substrates with satisfactory yields. Its ligand-free conditions and high efficiency make this method particularly attractive.

Supporting Information