Catalytic methoxycarbonylation of alkoxyallenes

摘要

Methoxyallene reacts with carbon monoxide in the PdCl2-CuCl2-NaHCO3 (NaHCO3/NaOAc) system in MeOH to afford methyl 2-(dimethoxymethyl)acrylate and 2-chloro-3,3-dimethoxyprop-1-ene; the third product, 2-chloro-1-methoxy-2-propenyl acetate, appears when NaHCO3-NaOAc is used as a buffer component.