DABCO-catalyzed synthesis of 3-substituted-3-hydroxyindolin-2-ones in aqueous media
作者:Keshri Nath Tiwari、Darshana Bora、Garima Chauhan、Deepika Yadav、Kavita Sharma、Ashima Thakur、Lachhman Singh、Vishwadeep Tripathi
DOI:10.1080/00397911.2016.1160411
日期:2016.4.2
ABSTRACT An efficient and greener protocol for easy access to 3-susbstituted-3-hydroxy-2-oxindoles by the reaction with various substituted isatins and acetophenones is described. This protocol is widely applicable for a variety of isatins and acetophenones using water as a reaction media and 1,4-diazabicyclo[2.2.2]octane (DABCO) as catalyst with shorter reaction time and good to excellent yield of
摘要描述了一种通过与各种取代的靛红和苯乙酮反应轻松获得 3-取代-3-羟基-2-oxindoles 的有效和更环保的协议。该方案广泛适用于以水为反应介质和 1,4-二氮杂双环 [2.2.2] 辛烷 (DABCO) 为催化剂的各种靛红和苯乙酮,具有较短的反应时间和良好的产品收率。图形概要