Convenient two-step one-pot synthesis of 3-substituted imidazo[1,2-a]pyridines and imidazo[1,2-b]pyridazines
作者:Hongli Fan、Fenghai Li
DOI:10.1007/s12039-018-1462-z
日期:2018.5
This protocol provides a simple and practical approach to 3-substituted fused imidazo-heterocyclic compounds in moderate to high yields. Graphical Abstract Synopsis. 3-Substituted imidazo[1,2-a]pyridines and imidazo[1,2-b]pyridazines were synthesized through a convenient, novel two-step one-pot reaction of heterocyclic amines and N,N-dimethylformamide dimethyl acetate with active electrophiles in moderate
摘要通过杂环胺与N的反应,开发了一种简便,新颖的两步法一锅法合成3-取代的咪唑并[1,2- a ]吡啶和3-取代的咪唑并[1,2- b ]哒嗪, 具有活性亲电子试剂的N-二甲基甲酰胺乙酸二甲酯\(\ hbox RCH} _ 2} \ hbox Br} \)(\(\ hbox R} = \ hbox CO} _ 2} \ hbox Et} \),CN,COPh,4'-MeO-PhCO和4'-F-PhCO)。该协议为中度至高收率的3-取代稠合咪唑杂环化合物提供了一种简单实用的方法。 图形概要 概要。通过杂环胺与N,N-二甲基甲酰胺乙酸二甲酯与活性亲电试剂的便捷,新颖的两步一锅反应,合成了3-取代的咪唑并[1,2- a ]吡啶和咪唑并[1,2- b ]哒嗪中等至高产。