Cu(I)-catalyzed reaction of diazo compounds with terminal alkynes: a direct synthesis of trisubstituted furans
作者:Mohammad Lokman Hossain、Fei Ye、Yan Zhang、Jianbo Wang
DOI:10.1016/j.tet.2014.07.086
日期:2014.9
method for the synthesis of tri-substituted furans has been developed based on Cu(I)-catalyzed reaction of terminal alkynes with β-keto α-diazoesters. This method for the synthesis of 2,3,5-trisubstituted furans is operationally simple and applicable to wide substrate scope. Moreover, this synthesis employs cheap Cu(MeCN)4PF6 as the catalyst and no additional ligand is needed. Similar reaction has also been
基于Cu(I)催化的末端炔烃与β-酮α-重氮酸酯的反应,已经开发了一种三取代呋喃的合成方法。该合成2,3,5-三取代呋喃的方法操作简单,适用于广泛的底物范围。此外,该合成采用廉价的Cu(MeCN)4 PF 6作为催化剂,不需要其他配体。类似的反应也已用于(E)-2-重氮-3-(甲氧基亚氨基)丁酸乙酯,用于合成2,3,5-三取代的N-甲氧基吡咯,但效果有限。