Preparation of Imides via the Palladium-Catalyzed Coupling Reaction of Organoborons with Methyl <i>N</i>-[Methoxy(methylthio)methylene]carbamate as a One-Carbon Elongation Reaction
The preparation of imides via the palladium-catalyzed coupling reaction as a one-carbon elongation reaction is described. The palladium-catalyzed coupling reaction of aryl-, alkyl-, and alkenylborons with N-[methoxy(methylthio)methylene]carbamate in the presence of Cu(I) thiophene-2-carboxylate (CuTC) affords imino ethers that are converted to the corresponding imides by acidic hydrolysis in high yield