Gram-scale preparation of dialkylideneacetones through Ca(OH)2-catalyzed Claisen-Schmidt condensation in dilute aqueous EtOH
作者:Hao Zhang、Mengting Han、Chenggen Yang、Lei Yu、Qing Xu
DOI:10.1016/j.cclet.2018.01.035
日期:2019.1
synthetic method of dialkylideneacetones has been developed. Compared with known protocols, the method employed catalytic Ca(OH)2 as the cheap, mild base catalyst and dilute aqueous EtOH (20%, v/v) as the green and safe solvent. The procedure was easily operated: In most cases, the product could be isolated by a simple filtration, and purified by washing with water. This paper provided experimental details
摘要建立了二亚烷基丙酮的合成方法。与已知方案相比,该方法使用催化性Ca(OH)2作为廉价,温和的碱催化剂,而稀EtOH水溶液(20%,v / v)作为绿色安全的溶剂。该程序易于操作:在大多数情况下,可通过简单过滤将产物分离,并用水洗涤纯化。本文提供了反应的实验细节,可用于克级合成中,并且应该是在实验室和工业水平上制备这些有用化合物的非常可靠和实用的方案。