Visible-Light-Catalyzed Regioselective Arylcarboxylation of Allenes with CO2

Synlett DOI: 10.1055/a-2293-3370 A visible-light-catalyzed arylcarboxylation of allenes with CO2 was developed using [Ir(ppy)2(dtbbpy)]PF6 (ppy = 2-phenylpyridine; dtbbpy = 4,4′-di-tert-butyl-2,2′-bipyridine) as a photocatalyst to synthesis β-aryl β,γ-unsaturated carboxylic acids. This multicomponent protocol proceeds in an atom-economical way with exclusive regioselectivity. Preliminary mechanistic experiments suggested that allylic carbanion species are the key intermediates. [...] Georg Thieme Verlag KG Rüdigerstraße 14, 70469 Stuttgart, GermanyArticle in Thieme eJournals: Table of contents  |  Abstract  |  Full text

Source: Synlett - April 9, 2024 Category: Chemistry Authors: Zhang, Xianming Zhang, Zhenqiang Zhan, Zhuangping Tags: letter Source Type: research