Synlett 2020; 31(11): 1102-1106
DOI: 10.1055/s-0040-1708002
letter
© Georg Thieme Verlag Stuttgart · New York

Acetic Acid Promoted Direct Iodination of Terminal Alkynes with N-Iodosuccinimide: Efficient Preparation of 1-Iodoalkynes

Ming Yao
a   Jingchu University of Technology, Jingmen, 448000, P. R. of China   Email: yaomingcep@jcut.edu.cn
,
Jingjing Zhang
b   Wuhan Institute of Technology, Wuhan, 430205, P. R. of China
,
Sen Yang
a   Jingchu University of Technology, Jingmen, 448000, P. R. of China   Email: yaomingcep@jcut.edu.cn
,
E Liu
a   Jingchu University of Technology, Jingmen, 448000, P. R. of China   Email: yaomingcep@jcut.edu.cn
,
Hangxing Xiong
a   Jingchu University of Technology, Jingmen, 448000, P. R. of China   Email: yaomingcep@jcut.edu.cn
› Author Affiliations
We are grateful to the Hubei Provincial Department of Education (T201719) for generous financial support.
Further Information

Publication History

Received: 05 February 2020

Accepted after revision: 02 March 2020

Publication Date:
12 March 2020 (online)


Abstract

An efficient and highly chemoselective approach for the direct iodination of terminal alkynes using acetic acid as N-iodosuccinimide activated reagent under metal-free conditions has been developed. This facile process tolerates a variety of terminal alkynes and provides the desired products in good to excellent yields (up to 99%).

Supporting Information