Late-Stage N-Alkenylative Modifications of Indolic Scaffolds with Propiolates: Toward Bisconjugation and Macrocyclization

Xiaoye Chen, Chi-Ming Au, Pengyuan Fang, Yunsheng Xue*, Ken Cham-Fai Leung*, Wai-Lun Chan*

*Corresponding author for this work

Research output: Contribution to journalJournal articlepeer-review

Abstract

A facile, mild, and scalable late-stage N-alkenylative modification strategy is introduced on 1H-indoles, 9H-carbazoles, and their structural derivatives and analogues, including alkaloids, bioactive agents, and tryptophan motifs, via chemo- and regioselective phosphine-mediated propiolate hydroamination. Saliently, through this protocol, bisconjugation and macrocyclization on (bis)indolic scaffolds can also be accomplished, with the installation of new α,β-unsaturated ester handles for potential further versatile synthetic manipulations.

Original languageEnglish
Pages (from-to)5081-5086
Number of pages6
JournalOrganic Letters
Volume27
Issue number20
Early online date14 May 2025
DOIs
Publication statusPublished - 23 May 2025

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