Synthesis and Photochemical Characterization of Indolizine Fluorophores Obtained by a Multicomponent Palladium Iodide−Catalyzed Oxidative Aminocarbonylation Approach
作者:Ida Ziccarelli、Roberta Amuso、Raffaella Mancuso、Antonio Maggiore、Giuseppe Lamberti、Paola Vitale、Vincenzo Maiorano、Lucia Veltri、Bartolo Gabriele
DOI:10.1002/ejoc.202400013
日期:2024.3.25
N,N-disubstituted 2-(indolizin-3-yl)acetamides with fluorescent properties are obtained in a multicomponent fashion starting from simple building blocks (2-(pyridin-2-yl)pent-4-yn-1-carbonyl compounds, CO, amines, and oxygen) through a sequential PdI2/KI-catalyzed oxidative aminocarbonylation – cyclization – aromatization process. Initially formed 2-ynamide intermediates, ensuing from Pd-catalyzed
具有荧光特性的N , N-二取代2-(中氮茚-3-基)乙酰胺以多组分方式从简单的结构单元(2-(吡啶-2-基)戊-4-yn-1-羰基化合物开始, CO、胺和氧)通过连续的 PdI 2 /KI 催化的氧化氨基羰基化 - 环化 - 芳构化过程。最初形成的 2-ynamide 中间体由 Pd 催化的三键氧化氨基羰基化产生,通过胺促进的分子内脱芳族缀合物加成,然后再芳构化,原位转化为最终产物。