New Titanium Complexes and Their Use in Hydroamination and Hydroaminoalkylation Reactions

Abstract

The synthesis of three new sterically crowded titanium complexes which all possess an identical formamidinato ligand, two dimethylamido ligands and in addition, a 2-aminopyridinato ligand that contains either an N-methyl, an N-phenyl, or an N-cyclohexyl substituent is presented. All new complexes are easily accessible from a common titanium mono(formamidinate) precursor and correspondingly N-substituted 2-aminopyridines. Furthermore, the new complexes are used as catalysts for selected hydroamination and hydroaminoalkylation reactions and finally, the catalytic performance of the new catalysts is compared with the performance of the titanium mono(formamidinate) precursor.