RhIII-Catalyzed Hydroacylation Reactions between N-Sulfonyl 2-Aminobenzaldehydes and Olefins

Metal‐catalyzed hydroacylation of olefins represents an important atom‐economic synthetic process in CH activation. For the first time highly efficient RhIIICp*‐catalyzed hydroacylation was realized in the coupling of N‐sulfonyl 2‐aminobenzaldehydes with both conjugated and aliphatic olefins, leading to the synthesis of various aryl ketones. Occasionally, oxidative coupling occurred when a silver(I) oxidant was used. Synthetically practical hydroacylation reactions have been realized between N‐sulfonyl 2‐aminobenzaldehydes and olefins under RhIII catalysis by means of a CH activation pathway. Different categories of olefins, including aliphatic ones, are viable substrates. A different selectivity such as oxidative coupling could take place when Ag2CO3 was used as an oxidant (see scheme).