Nenitzescu Synthesis of 5‐Hydroxyindoles with Zinc, Iron and Magnesium Salts in Cyclopentyl Methyl Ether
作者:Giuseppe Satta、Elena Usala、Angelo Solinas、Melina Römer、Marco Livesi、Giovanni Michele Pira、Andrea Beccu、Silvia Carboni、Silvia Gaspa、Lidia De Luca、Luisa Pisano、Ugo Azzena、Massimo Carraro
DOI:10.1002/ejoc.202101045
日期:2021.11.15
In cyclopentyl methyl ether (CPME), the Nenitzescu reaction of enamines and quinones can be catalyzed with ZnCl2, ZnI2, Mg(CF3SO3)2 or FeCl3 at room temperature to give 5-hydroxyindoles as crystalline solids, which can be isolated by simple filtration from the reaction mixture. CPME can be efficiently recycled and reused.
在环戊基甲基醚 (CPME) 中,烯胺和醌的 Nenitzescu 反应可以在室温下与 ZnCl 2、ZnI 2、Mg(CF 3 SO 3 ) 2或 FeCl 3催化得到 5-羟基吲哚结晶固体,它可以通过简单过滤从反应混合物中分离。CPME 可以有效回收和再利用。