Various substituted 1,3‐thiazolidin‐2‐ones can be synthesized by using a tBuOK‐mediated carbonylativecyclization of propargylicamines with elemental sulfur. Benzene‐1,3,5‐triyl triformate (TFBen) serves as a convenient CO surrogate.
We report here a new carbonylative procedure for the cyclization of propargylicamines with elemental selenium (Se). By using tBuOK as the promoter, various 1,3‐selenazolidin‐2‐ones were produced without the usage of toxic CO gas. Benzene‐1,3,5‐triyl triformate (TFBen) was employed as a safe and convenient CO surrogate here, and a broad class of substrates (29 examples) were effectively transformed
The silver-catalyzedcarbondioxideincorporation reaction into various propargylic amines proceeded under mild reaction conditions to obtain the corresponding oxazolidinone derivatives in high to ...
A silver/DBU catalyst system was developed for the effective synthesis of cyclic carbonate and oxazolidinone from the reaction of CO2 with propargylicalcohols and propargylic amines, respectively,...
Copper/DTBP-Promoted Oxyselenation of Propargylic Amines with Diselenides and CO<sub>2</sub>: Synthesis of Selenyl 2-Oxazolidinones
作者:Jia-Min Chen、Lin Qi、Linlin Zhang、Li-Jun Li、Cong-Ying Hou、Wei Li、Li-Jing Wang
DOI:10.1021/acs.joc.0c01519
日期:2020.8.21
A highly efficient electrophilic oxyselenation of propargylic amines with diselenides and CO2 under atmospheric pressure promoted by copper/DTBP is reported. Various biologically important selenyl 2-oxazolidinones were produced in moderate to excellent yields. The developed method features a broad substrate scope, easy scalability, and mild reaction conditions.