Copper(I)-catalyzed synthesis of isoindolo[1,2-b]quinazoline derivatives via an α-arylation under Pd and ligand free conditions
作者:Yan Zhang、Jian-Quan Liu、Xiang-Shan Wang
DOI:10.1016/j.tetlet.2020.152508
日期:2020.11
A tandem cyclization reaction of diethyl 2-(2-aminobenzamido)malonates and 2-bromobenzaldehydes was developed for the synthesis of isoindolo[1,2-b]quinazolinederivatives. The quinazoline was formed first catalyzed by CuI, followed by a noteworthy α-arylation reaction under Pd and ligand-free conditions in the presence of Cs2CO3.
开发了2-(2-氨基苯甲酰胺基)丙二酸二乙酯和2-溴苯甲醛的串联环化反应,用于合成异吲哚并[1,2- b ]喹唑啉衍生物。喹唑啉首先由CuI催化形成,然后在Cs 2 CO 3存在下,在Pd和无配体条件下发生明显的α-芳基化反应。
SUSS. E, MANFRED;SCHAKS, ANGELA;JOHNE, SIEGFRIED
作者:SUSS. E, MANFRED、SCHAKS, ANGELA、JOHNE, SIEGFRIED