在氯化铝存在下用苯胺处理的2-氨基苄腈分别得到2-氨基-N-芳基苯甲m。通过在甲酸中加热2-氨基-N-芳基苯甲m直接获得在2位上没有取代基的4-芳基氨基喹唑啉;在类似条件下,其他羧酸不与the反应。当用醛处理时,后者得到2-芳基-4-芳基氨基-1 H -2,3-二氢喹唑啉易于被高锰酸钾氧化成2-芳基-4-芳基氨基喹唑啉。
在氯化铝存在下用苯胺处理的2-氨基苄腈分别得到2-氨基-N-芳基苯甲m。通过在甲酸中加热2-氨基-N-芳基苯甲m直接获得在2位上没有取代基的4-芳基氨基喹唑啉;在类似条件下,其他羧酸不与the反应。当用醛处理时,后者得到2-芳基-4-芳基氨基-1 H -2,3-二氢喹唑啉易于被高锰酸钾氧化成2-芳基-4-芳基氨基喹唑啉。
Three-Component Domino Synthesis of 2-Arylquinazoline-4-amines in One Pot by Activating an sp3 C-H Bond in a Nonmetal Catalytic Oxidation System
作者:Li-Yan Zeng、Wen-Bin Yi、Chun Cai
DOI:10.1002/ejoc.201101315
日期:2012.1
The nonmetalcatalyticoxidationsystem I2/tert-butyl hydroperoxide (TBHP) has been unprecedentedly applied to a three-componentdomino reaction and simultaneously a simple and efficient protocol has been developed to newly synthesize 2-aryl-N-substitutied quinazoline-4-amines in onepot from isatoic anhydride, aromatic amine, and another amine containing methylene adjacent to nitrogen. This protocol