Molecular Design of Active Metal Catalysts Based on Transition Metal Complexes with Metal-Carbon Bond and/or Supported by Spaciously Congested Tetradentate Ligands. Synthesis, Reactivity and Applications in Organic Transformation Reactions

Professor Che, Chi Ming   (Principal Investigator (PI))

Dr Xu Zhen-jiang   (Co-Investigator)

36

2015-09-01

706972

Molecular Design of Active Metal Catalysts Based on Transition Metal Complexes with Metal-Carbon Bond and/or Supported by Spaciously Congested Tetradentate Ligands. Synthesis, Reactivity and Applications in Organic Transformation Reactions

Bulky tetradentate ligands, Catalysis, Metal-carbene, Metal-oxo, Ruthenium

Chemical Sciences

Physical Sciences (P)

17303815

General Research Fund (GRF)

2015

Completed

1 Develop metalloporphyrins and metal-Schiff base complexes having auxiliary C-donor ligand for applications in catalytic C-X bond formation reactions. To study the effect of trans C-donor ligands [R-, CO, Ar-, NHC, RCC-] on the structures and reactivity of reactive M=X intermediates of iron, ruthenium and iridium. 2 Design and synthesis of new classes of spaciously congested multidentate ligands having N and/or (N, O) donor atoms and which adopt non-planar coordination geometry. To prepare metal complexes with these ligands and study their catalytic activity in C-X bond forming reactions. 3 Expand the ruthenium porphyrin-catalyzed alkylcarbene C-H insertion reactions [Angew. Chem. Int. Ed. Early View, DOI: 10.1002/anie.201408102] to other metal complexes containing different auxiliary ligands. To develop highly active metal catalysts for selective alkylcarbene C-H insertion. 4 Explore chiral ruthenium and iron complexes having two labile cis coordination sites for highly enantioselective metal-catalyzed organic transformation reactions.