Silver‐Catalyzed Three‐Component Coupling Reaction of Amines, 2‐Isocyanobenzaldehydes, and 2,2,2‐Trifluorodiazoethane and Synthesis of Trifluoromethyl‐Substituted Indolo[1,2‐
<i>c</i>
]quinazolines
作者:Xiang‐He Meng、Ming Yang、Ju‐Yin Peng、Yu‐Long Zhao
DOI:10.1002/adsc.202000957
日期:2021.1.5
A silver‐catalyzed three‐component coupling reaction of amines, 2‐isocyanobenzaldehydes, and 2,2,2‐trifluorodiazoethane has been developed. This reaction provides an efficient method for the construction of CF3‐containing dihydroquinazolines. On the basis of this reaction, using trifluorodiazoethyl‐substituted dihydroquinazolines as synthons, trifluoromethyl‐substituted indolo[1,2‐c]quinazolines were
已开发出一种银催化的胺,2-异氰基苯甲醛和2,2,2-三氟重氮乙烷的三组分偶联反应。该反应为构建含CF 3的二氢喹唑啉提供了一种有效的方法。在此反应的基础上,使用三氟重氮乙基取代的二氢喹唑啉作为合成子,通过TBHP / KI介导的顺序分子内环化和芳构化过程,高收率制备了三氟甲基取代的吲哚[1,2- c ]喹唑啉。