Continuous flow synthesis of functionalized biaryl compounds via a benzyne intermediate

Abstract

A continuous flow protocol for the preparation of benzyne was developed utilizing readily accessible 1-bromo-2-iodobenzene and iPrMgCl·LiCl. The halogen–magnesium exchange and subsequent elimination reactions were conducted at temperatures of 0 °C and 80 °C, respectively, resulting in the generation of a highly reactive benzyne intermediate within minutes. The in situ generated benzyne can be efficiently employed in the continuous flow synthesis of functionalized biaryl compounds, including a series of ligands commonly utilized in Buchwald–Hartwig cross-coupling reactions.

Graphical abstract: Continuous flow synthesis of functionalized biaryl compounds via a benzyne intermediate

Supplementary files

Article information

Article type
Paper
Submitted
18 Jan 2025
Accepted
07 Mar 2025
First published
07 Mar 2025

React. Chem. Eng., 2025, Advance Article

Continuous flow synthesis of functionalized biaryl compounds via a benzyne intermediate

C. Liang, W. Lin, Z. Lin, R. Yu, Y. Kang, X. Sang, M. Sun, Y. Ma, R. Cheng and J. Ye, React. Chem. Eng., 2025, Advance Article , DOI: 10.1039/D5RE00023H

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