C−H Activation on an Oxo-Bridged Dititanium Complex: From Alkyl to μ‑Alkylidene Functionalities
Thermal treatment of the dinuclear compound [{Ti(eta(5)-C5Me5)(CH2SiMe3)(2)}(2)(mu-O)] (1) provides the formation of the metallacycle derivatives [Ti-2(eta(5)-C3Me5)(2) (mu-CH2SiMe2CH2)(CH2SiMe3)(2)(mu-O)] (2) and [Ti-2(eta(5)-C(6)Mes)(2)(mu-CH2SiMe2CH2)(2)(mu-O)] (3) and the mu-alkylidene complex [...
| Autores: | , , , |
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| Tipo de recurso: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Institución: | Universidad de Alcalá (UAH) |
| Repositorio: | e_Buah Biblioteca Digital Universidad de Alcalá |
| Idioma: | inglés |
| OAI Identifier: | oai:ebuah.uah.es:10017/63038 |
| Acceso en línea: | http://hdl.handle.net/10017/63038 https://dx.doi.org/10.1021/acs.organomet.6b00381 |
| Access Level: | acceso abierto |
| Palabra clave: | Química Chemistry |
| Sumario: | Thermal treatment of the dinuclear compound [{Ti(eta(5)-C5Me5)(CH2SiMe3)(2)}(2)(mu-O)] (1) provides the formation of the metallacycle derivatives [Ti-2(eta(5)-C3Me5)(2) (mu-CH2SiMe2CH2)(CH2SiMe3)(2)(mu-O)] (2) and [Ti-2(eta(5)-C(6)Mes)(2)(mu-CH2SiMe2CH2)(2)(mu-O)] (3) and the mu-alkylidene complex [Ti-2(eta(5)-C5Me5)(2)(mu-CH2SiMe2CH2)(mu-CHSiMe3)(mu-0)] (4) by sequential carbon hydrogen activation processes. The reaction of 3 with tert-butylisocyanide, in 1:1 and 1:2 ratios, leads to the eta(2)-iminoacyl complexes [Ti-2(eta(5)-C5Me5)(2)(mu-tBuNCCH(2)SiMe(2)CH(2))(mu-CH(25)iMe(2)CH(2))(Ti-2)] (5) and [Ti-2.(eta(C5Me5)-C-5)(2)(mu-tBuNCCH(2)SiMe(2)CH(2))(2)(mu-O)] (6), respectively. The molecular structures of complexes 3, 4, 5, and 6 have been determined by single -crystal X-ray diffraction analyses. |
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