Asymmetric cyanosilylation of ketones catalyzed by novel chiral N,N′-dioxide titanium complexes

A novel C2-symmetric chiral N,N′-dioxide titanium complex was described, which could efficiently catalyze the asymmetric cyanosilylation of ketones in high yields with up to 92% ee under mild conditions. In addition, the catalyst system was simple and the ligands could be easily prepared from commercially available chiral amino acid.