Hydrosilylation in imino-substituded N- or C-monoanionic ligands

The HSiCl3 was treated with 2-[N-(2,6-diisopropylphenyl)iminomethyl]indolyl lithium (DippIMIndLi) or 2-[N-(2,6-diisopropylphenyl)iminomethyl]phenyl lithium (DippIMPhLi) to give either disubstituted (DippAMInd)(DippIMInd)SiCl (2) or stable CHN → Si coordinated silane (DippIMPh)SiHCl2 (3). Heating of 3 provided the hydrosilylated compound (DippAMPh)SiCl2 (4). Therefore, it has been demonstrated that the rate of CHN imino group reduction strongly depends on the type of the anionic ligand.53