Synthesis of two nitrogen-containing polyaromatic compounds through gold catalysis/DBU-promoted cyclizations
作者:Vikas Ashokrao Sadaphal、Tien-Lin Wu、Rai-Shung Liu
DOI:10.1039/d4cc00113c
日期:2024.4.16
This work reports an efficient synthesis of novel benzo[7,8]indolizino[2,3,4,5-ija]quinazoline derivatives between 2-(2-ethynylaryl)acetonitriles 1 and anthranils 2. The synthetic approach involves the initial formation of 7-formylindole intermediates that can be implemented by DBU to activate a novel indole–nitrile–aldehyde cyclization.
这项工作报道了一种新型苯并[7,8]吲嗪并[2,3,4,5- ija ]喹唑啉衍生物在2-(2-乙炔基芳基)乙腈1和邻氨基苯酚2之间的有效合成。合成方法涉及初始形成7-甲酰基吲哚中间体,可通过 DBU 来激活新型吲哚-腈-醛环化。