Iron‐catalyzed Hydrosilylation of Secondary Carboxamides: Chemoselective Access to Aldimines.

This contribution described the chemoselective reduction of secondary carboxamides to aldimines. To perform such challenging transformation, we reported a catalyzed hydrosilylation using Fe(CO)4(IMes) [IMes=1,3‐bis (2,4,6‐trimethylphenyl) imidazol‐2‐ylidene] as the catalyst, diphenylsilane as the reductant under UV irradiation (350 nm) at room temperature for 16 h. Aldimines were then obtained, after a basic quench, in 32–83 % isolated yields. This transformation was unprecedented at iron. [ABSTRACT FROM AUTHOR]