FACILE AND REVERSIBLE DISPLACEMENT OF ETA-C5H5 FROM ZR BY ORGANOLITHIUMS - FORMATION OF (ETA(5)-CYCLOPENTADIENYL)TRIALKYLZIRCONIUMS AND THEIR REACTIONS WITH ELECTROPHILES AND ALKENES

Treatment of [Zr(eta-C5H5)2Cl(2)] with 3 equiv. of Bu(n)Li gives a 1:1 mixture of [Zr(eta-C5H5)Bu(3)(n)] and Li(C5H5), which reacts with HCl or I-2 to give n-butane and [Zr(eta-C5H5)(2)Cl-2] or Bu(n)I and [ZT(e ta-C5H5)(2)I-2], respectively, while the reaction of [Zr(eta-C5H5>2Cl( 2)] with 3.3 equiv. of C6H12Li and hex-1-ene provides a novel zirconat e best represented by 3.