Front Cover: Asymmetric Mannich/Radical Debromination Cascade of α‐Bromoketones by Dipeptide‐Phosphonium Salt Catalysis: Enantioselective Synthesis of β‐Amino Ketone‐Pyrazolinones (Asian J. Org. Chem. 6/2023)

Peptide-phosphonium salt (PPS) catalysts, which contain multiple hydrogen-bonding donors, have displayed remarkable phase-transfer catalytic efficiency in recent years. The cover art demonstrated that PPS catalysts can efficiently promote the enantioselective Mannich/radical debromination cascade of α-brominated ketones with pyrazolinone ketimines to access valuable chiral β-amino ketone-pyrazolinone scaffolds. This protocol would open new avenues for organocatalytic enantioselective radical reactions. More information can be found in the Research Article by Tianli Wang et al.