The Synthesis of Quinazolinones from Olefins, CO, and Amines over a Heterogeneous Ru-clusters/Ceria Catalyst
作者:Jinghua An、Yehong Wang、Zhixin Zhang、Zhitong Zhao、Jian Zhang、Feng Wang
DOI:10.1002/anie.201806266
日期:2018.9.17
used in pharmaceuticals because of their biological activity. However, the efficient and economical synthesis of quinazolinones has remained a challenge. A novel synthetic approach has now been developed to produce quinazolinones from olefins, CO, and amines over heterogeneous Ru‐clusters/ceria catalyst in the absence of acids, bases, and oxidants. Furthermore, H2O is generated as the only by‐product
喹唑啉酮类是一类重要的杂环化合物,由于其生物活性而已广泛用于药物中。然而,喹唑啉酮的有效和经济合成仍然是一个挑战。现在,已经开发出一种新颖的合成方法,可以在不存在酸,碱和氧化剂的情况下,在异质Ru-clusters /氧化铈催化剂上,由烯烃,CO和胺类生成喹唑啉酮。此外,H 2O是唯一的副产物。可以以高达99%的收率获得一系列带有芳族或非芳族取代基的喹唑啉酮。Ru-clusters / ceria可以重复使用至少四次。对合成2-乙基喹唑啉酮的E因子(环境影响因子)的分析表明,该系统比以前报道的其他方法对环境更友好。