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%).
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
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.
Stereoselective amination <i>via</i> vinyl-silver intermediates derived from silver-catalyzed carboxylative cyclization of propargylamine
作者:Yuta Sadamitsu、Kodai Saito、Tohru Yamada
DOI:10.1039/d0cc02273j
日期:——
The stereoselective synthesis of aminovinyloxazolidinones based on the electrophilic amination of a vinyl-silver intermediate, generated by silver-catalyzed carbon dioxide incorporation on a propargyl amine, was achieved. The geometry of the aminated product was determined by a single crystal X-ray analysis and NOE measurement and it was elucidated that the geometry was proved to be opposite to the