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AbstractAbstract
[en] Cyclopentadiene compounds, 2-[CR'R(OMe)]-1,3-Me_2C_5H_3 (R, R' = 2,2'-biphenyl, 2) and 2-[CR'R(OSiMe_3)]- 1,3-Me_2C_5H+3 (R, R' = 2,2'-biphenyl, 3: R = ph, R' = ph, 4: R = 2-naphthyl, R' = H, 5) are readily synthesized from 2-bromo-3-methoxy-1,3-dimethylcyclopentene (1). Reaction of the cyclopentadienes with Ti(NMe_2)_4 in toluene results in clean formation of the cyclopentadienyl tris(dimethylamido)titanium complexes, which are transformed to the trichloride complexes, 2-[CR'R(OMe)]-1,3-Me_2C_5H_2}TiCl_3 (R, R' = 2,2'-biphenyl, 6) and {2-[CR'R(OSiMe_3)]-1,3-Me_2C_5H_2}TiCl_3 (R, R' = 2,2'-biphenyl, 7: R = ph, R' = ph, 8: R = 2-naphthyl, R' = H, 9). Attempts to form C1-bridged Cp/oxido complexes by elimination of MeCl or Me_3SiCl were not successful. X-ray structures of 6, 7 and an intermediate complex {2-[Ph_2C(OSiMe_3)]-1,3-Me_2C_5H_2}TiCl_2(NMe_2) (10) were determined
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14 refs, 5 figs, 1 tab
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Journal Article
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Bulletin of the Korean Chemical Society; ISSN 0253-2964; ; v. 26(2); p. 233-237
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