The complex (tmtaa)TiO undergoes [2 + 2] cycloaddition of the TiO bond across the CO bond of ketones and [(C5Me5)Re(CO)2(NO)]+, the SO bonds of SO2 and SO3, the CS bond of CS2, and ring opens epoxides and cyclic anhydrides to give metallacycles.
                                    (tmtaa)TiO复合物通过酮和[(C5Me5)Re(CO)2(NO)]+的CO键、SO2和SO3的SO键、CS2的CS键以及
环氧化物和
环酸酐的开环键进行[2 + 2]环加成反应,生成
金属环。