Group 4 Complexes Bearing Pyrrolide Ligand for Intramolecular Alkene Hydroamination and Activation of C≡N Bond

Abstract

Titanium and zirconium complexes supported by a pyrrolide ligand HL 1 [HL 1 = 2-cyano-1H-pyrrole], Ti 2 (L 2 ) 2 (NMe 2 ) 2 (1) and Zr 3 (L 2 ) 3 (NMe 2 ) 6 (2) [L 2 = N,N-dimethyl-1H-pyrrol-2-carboximidamide, NMe 2 -L 1 ] were synthesized and characterized. The ligand L 2 was generated by activation of CϵN bond of HL 1 with HNMe 2 . In complex 1, two Ti IV atoms are bridged by two nitrogen atoms. There