A (S)-pyrrolidine sulfonamidecatalyzed asymmetric direct aldol reaction of aryl methyl ketones with aromatic aldehydes has been developed with moderate to good enantioselectivities. The study considerably broadens the substrate scope of chiral amines promoted aldol processes.
Pyrrolidine-oxadiazolone conjugate as new organocatalyst for asymmetric aldol condensation
作者:Chandan K. Mahato、Subhro Mandal、Mrinalkanti Kundu、Animesh Pramanik
DOI:10.1080/00397911.2023.2205593
日期:2023.6.18
heterocycle, has been successfully applied for stereoselective aldol reactions. The replacement of polar -COOH group of proline with bioisostere oxadiazolone ring provides excellent solubility of this catalyst in various organic solvents compared to low soluble proline. As a result, the organocatalyst effectively catalyzed the asymmetric condensation reaction between differently substituted aromatic aldehydes