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Please login to access the full content or check if you have access via2.10.1.2 Method 2: Titanium(II)–Arene Complexes
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Mikami, K.; Matsumoto, Y.; Shiono, T., Science of Synthesis, (2003) 2, 458.
Titanium(II)–arene complexes are well-defined and thermally stable; they are excellent catalysts for the specific cyclotrimerization of butadiene[39] and the dimerization of cycloheptatriene.[40] The catalytic properties of titanium(II)–benzene complexes in the cyclotrimerization of butadiene were found to depend strongly on the type of halide ligands. The chloro complex typically shows a small rate constant and negligible deactivation. The bromo complex shows a much higher initial rate, but rapidly becomes deactivated. The mixed iodine-containing complexes are practically inert. The mixed chloro–bromo complexes [Ti(Al2Cl8−xBrx)(η6-benzene)] (x ≤ 4) exhibit higher initial reaction rates than that shown by the chloro complex.
References
| [39] | Meeáeee, M.; Meeeeeeeeeeà, M.; Meeeš, M.; Meeeeeeeá, M.; Meee, M., M. Mee. Meeee., (8888), 888. |
| [40] | Meee, M.; Meeeeeeeeeeà, M.; Meeeeeeeá, M.; Meeeš, M.; Meeečee, M.; Meeeeee, M., Meeeeeeeeee, (8888) 88, 8888. |
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