Benzene-1,3,5-triyl Triformate (TFBen)-Promoted Palladium-Catalyzed Carbonylative Synthesis of 2-Oxo-2,5-dihydropyrroles from Propargyl Amines
作者:Jun Ying、Zhengjie Le、Xiao-Feng Wu
DOI:10.1021/acs.orglett.9b04147
日期:2020.1.3
In this letter, we developed a palladium-catalyzed procedure for the cyclocarbonylation of propargyl amines. Benzene-1,3,5-triyl triformate (TFBen) has been explored as the CO source and also as the key promotor. Various substituted 2-oxo-dihydropyrroles were produced in a facile manner in good yields (up to 90%).
A palladium‐catalyzed double carbonylation of propargyl amines and benzyl chlorides employing benzene‐1,3,5‐triyl triformate (TFBen) as the CO source has been developed. By using this protocol, various 1,5‐dihydro‐2H‐pyrrol‐2‐ones were produced in good yields.
Ag(I)-Mediated Annulation of 2-(2-Enynyl)pyridines and Propargyl Amines to Access 1-(2<i>H</i>-Pyrrol-3-yl)indolizines
作者:Feng Li、Qing Yang、Ming-Yue Liu、Pei-Xuan An、Ya-Long Du、Yan-Bo Wang
DOI:10.1021/acs.joc.3c02024
日期:2024.1.5
An effective Ag(I)-mediated annulation of 2-(2-enynyl)pyridines and propargyl amines was developed, unexpectedly affording a broad range of functionalized 1-(2H-pyrrol-3-yl)indolizines in moderate to excellent yields. The developed method is characterized by operational simplicity, ready availability of starting materials, high regioselectivity, and broad substrate scope under mild reaction conditions