Radical attack at coordinated ligand

17-Electron r/ -allyl and r -propargyl complexes of Ti(III) accepted attack 

A variety of 17 -bound carbonyl, isocyanide and carbene ligands as well as bound unsaturated hydrocarbon ligands n = 2-6) were shown to undergo facile attack of nucleophiles, radicals, or electrophiles to form new ligand frameworks. 

Palladium Reagents and Catalysts. Innovation in Organic Synthesis, Wiley, New York, NY, 1995. 

A transition metal atom of highly electron deficient nature is difficult to form even a short-lived metal-carbonyl bond owing to the lack of complementary n back-bonding interaction. 

Department of Applied Chemistry, Graduate School of Engineering, Osaka City University, Sumiyoshi-ku, Osaka 558-8585, Japan 

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