Domino Cyclization Reaction of <i>o</i>-Diisocyanoarenes for the Synthesis of Imidazo[1,2-<i>a</i>]pyridinobenzimidazole Backbones
作者:Mohammad Rezaei-Gohar、Kamran Amiri、Kimia Aghaie、Behrouz Nayebzadeh、Alireza Ariafard、Farshad Shiri、Frank Rominger、Dmitry Dar’in、Mikhail Krasavin、Saeed Balalaie
DOI:10.1021/acs.orglett.3c02137
日期:2023.8.4
imidazo[1,2-a]pyridine and benzimidazole skeletons through the C–N bond was described as a new type of Buchwald–Hartwig reaction. Furthermore, the bis(imidazo[1,2-a]pyridin-3-yl)aryl-1,2-diamine scaffolds were obtained by changing the equivalent ratio of the starting materials. Some advantages of the protocol are the formation of four new bonds (C═C, C–N), a transition-metal-free reaction, a broad
通过 C-N 键获得多种连接的咪唑并[1,2- a ]吡啶和苯并咪唑骨架的有效程序被描述为一种新型的 Buchwald-Hartwig 反应。此外,通过改变起始材料的当量比获得了双(咪唑并[1,2- a ]吡啶-3-基)芳基-1,2-二胺支架。该方案的一些优点是形成四个新键(C = C,C-N),无过渡金属反应,底物范围广,产率高,反应条件温和。通过DFT计算证实了反应机理。