2 research outputs found
Utilization of CO<sub>2</sub> as a C1 Building Block in a Tandem Asymmetric A<sup>3</sup> Coupling-Carboxylative Cyclization Sequence to 2‑Oxazolidinones
We
report a tandem asymmetric aldehyde–alkyne–amine
(A<sup>3</sup>) coupling-carboxylative cyclization sequence for the
highly enantioselective synthesis of chiral <i>N</i>-aryl
2-oxazolidinones. This is a rare example of a multicatalyst-promoted
asymmetric tandem reaction using CO<sub>2</sub> as a C1 synthon. Notably,
the copper species and ligand from the upstream A<sup>3</sup> reaction
are internally reused to facilitate the downstream silver-catalyzed
carboxylative cyclization