Synthesis 2018; 50(08): 1728-1736
DOI: 10.1055/s-0036-1591757
paper
© Georg Thieme Verlag Stuttgart · New York

Coupling of N-Nosylhydrazones with Nitrosoarenes: Transition-Metal-Free Approach to (Z)-N-Arylnitrones

Tingting Liu
a   School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, 1035 Shuobo Road, 130117 Changchun, P. R. of China   Email: hudonghua8888@gmail.com
,
Zhaohong Liu
d   Jilin Province Key Laboratory of Organic Functional Molecular Design & Synthesis Department of Chemistry, Northeast Normal University, 5268 Renmin Street, 130024 Changchun, P. R. of China
,
c   College of Chemistry, Chemical Engineering and Materials Science, Shandong Normal University, 88 Wenhuadong Road 250014 Jinan, P. R. of China
,
Donghua Hu
a   School of Pharmaceutical Sciences, Changchun University of Chinese Medicine, 1035 Shuobo Road, 130117 Changchun, P. R. of China   Email: hudonghua8888@gmail.com
,
Yeming Wang
b   Key Laboratory of Preparation and Applications of Environmental Friendly Materials (Jilin Normal University), Ministry of Education, 399 Zhuoyue Street, 130103 Changchun, P. R. of China   Email: wangyeming2011@163.com
› Author Affiliations
Further Information

Publication History

Received: 27 November 2017

Accepted after revision: 03 January 2018

Publication Date:
05 February 2018 (online)


Abstract

An efficient and transition-metal-free protocol for the synthesis of (Z)-N-arylnitrones from the direct coupling of N-nosylhydrazones with nitrosoarenes under mild conditions is described. The protocol is compatible with a wide range of functional groups placed on both the reagents and provided the corresponding nitrones in good to excellent yields by simple recrystallization process. The use of these 1,3-dipoles for the synthesis of substituted indoles is elaborated for 2,3-diphenyl-1H-indole.

Supporting Information