The electrochemical sulfonylation of enamides with sodium sulfinates was developed in an undivided cell under constant current mode, leading to β-amidovinyl sulfones in moderate to good yields. The catalyst-, electrolyte-...

A rare-earth salts Yb(OTf)3-catalyzed regioselective hydroamination of ynamides with anilines or p-toluenesulfonamide has been developed. This protocol provided facile access to a diverse range of amidines with good group functional group tolerance in moderate to high yield.

An efficient approach to divergently access γ-hydroxy-butenolides and γ-alkylidene-butenolides via annulation reaction of α-keto acids with simple aliphatic ketones is reported herein.

The cascade sequential reaction of α‐keto acids, 1‐iodoalkynes, and alkyl halides are reported herein to synthesize tetra‐substituted vinyl iodides. It represents an efficient protocol to access a diverse range of tetra‐substituted vinyl iodides starting from simple materials in a one‐pot fashion, featuring mild reaction conditions, ease of operation, and broad substrate scope.