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Unusual addition of but-2-yne to a permethyltitanocene species

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    0305709 - ÚFCH JH 2008 RIV NL eng J - Journal Article
    Mach, Karel - Gyepes, R. - Kubišta, Jiří - Horáček, Michal
    Unusual addition of but-2-yne to a permethyltitanocene species.
    [Neobvyklá adice but-2-inu do permethyltitanocených sloučenin.]
    Inorganic Chemistry Communications. Roč. 9, č. 2 (2006), s. 156-159. ISSN 1387-7003. E-ISSN 1879-0259
    R&D Projects: GA AV ČR KJB4040403
    Institutional research plan: CEZ:AV0Z40400503
    Keywords : titanium * permethyltitanocene * but-2-yne * insertion
    Subject RIV: CF - Physical ; Theoretical Chemistry
    Impact factor: 1.787, year: 2006

    The [TiCl2(eta(5)-C5Me5)(2)]MG(excess)/tetrahydrofuran system reacts with but-2-yne in excess to give paramagnetic (eta(5): eta(1)-1,2,3,4-tetra-methyl-5-(2,3,4,5-tetramethylpenta-2,4-dien-1,5-diyl-kappa C5)cyclopentadienyl)(eta(5)-pentamethylcyclopentadienyl)titanium(III) (1) as the main product. The crystal structure of 1 shows a minimum steric hindrance between the methylated cyclopentadienyl ligands and non-coplanar conjugated double bonds in the C-5 tether.

    Reakční systém [TiCl2(.eta.5-C5Me5)2]/Mg/tetrahydrofuran poskytuje s přebytkem but-2-inu paramagnetický komplex (.eta.5:.eta.1-1,2,3,4-tetramethyl-5-(2,3,4,5-tetramethylpenta-2,4-dien-1,5-diyl-κC5)cyklopentadienyl)(.eta.5-pentamethylcyklopentadienyl)titan(III) (1) jako hlavní produkt. Krystalová struktura komplexu 1 ukazuje minimální sterické repulze mezi methylovanými cyklopentadienylovými ligandy a konjugovanou dvojnou vazbou C5 řetězce.
    Permanent Link: http://hdl.handle.net/11104/0158909

     
     
Number of the records: 1  

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