메뉴 건너뛰기




Volumn 130, Issue 2, 2008, Pages 454-456

Detection of an η1-alkene intermediate of the type [Cp 2Zr(Me)(η1-alkene)]+: The role of such species in metallocene catalyst deactivation to allylic species

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE; ALKENE DERIVATIVE; ALLYL COMPOUND; ISOBUTYLENE; METHYL GROUP; ZIRCONIUM;

EID: 41449116967     PISSN: 00027863     EISSN: None     Source Type: Journal    
DOI: 10.1021/ja0742683     Document Type: Article
Times cited : (31)

References (44)
  • 25
    • 41449098667 scopus 로고    scopus 로고
    • The resonance at δ 0.46 exhibits only about 5% of the intensity of the Zr-Me resonance of [Cp2ZrMe(C6D 5Cl, B(C6F5)4, δ 0.63) at -40 °C and is not observed at room temperature. Thus, it was not detected in the previous study6a and was only noted here because of the cross-peak in the 2D NOESY experiment
    • 6a and was only noted here because of the cross-peak in the 2D NOESY experiment.
  • 26
    • 0038614770 scopus 로고    scopus 로고
    • Although often used as a catalyst, Cp2-ZrMe][B(C 6F5)4] has not to this point been well characterized. For 1H NMR data in C6D6, see Talsi, E. P, Eilerstein, J. L, Ystenes, M, Rytter, E. J. Organomet. Chem. 2003, 677, 10
    • 6, see Talsi, E. P.; Eilerstein, J. L.; Ystenes, M.; Rytter, E. J. Organomet. Chem. 2003, 677, 10.
  • 28
    • 0033740668 scopus 로고    scopus 로고
    • and refs therein. For a review of metallocene cations as initiators of isobutene polymerization, see: a
    • For a review of metallocene cations as initiators of isobutene polymerization, see: (a) Baird, M. C. Chem. Rev. 2000, 100, 1471 and refs therein.
    • (2000) Chem. Rev , vol.100 , pp. 1471
    • Baird, M.C.1
  • 33
    • 41449111545 scopus 로고    scopus 로고
    • 5Cl possible, see: Dumas, J. P. C. R. Acad. Sci., Ser. C 1977, 284, 257.
    • 5Cl possible, see: Dumas, J. P. C. R. Acad. Sci., Ser. C 1977, 284, 257.
  • 34
    • 0035956457 scopus 로고    scopus 로고
    • 5Br used well below its mp, see Goodman, J. T.; Schrock, R. R. Organometallics 2001, 20, 5205.
    • 5Br used well below its mp, see Goodman, J. T.; Schrock, R. R. Organometallics 2001, 20, 5205.
  • 35
    • 41449101495 scopus 로고    scopus 로고
    • Sandström, J. Dynamic NMR Spectroscopy; Academic Press: London, 1982; pp 79, 96. The coalescence temperature was ∼-50°C and the peak separation at -60°C was ∼15 Hz. However, the resonances were still broad, and Δν would probably be larger at the limiting spectrum.
    • (a) Sandström, J. Dynamic NMR Spectroscopy; Academic Press: London, 1982; pp 79, 96. The coalescence temperature was ∼-50°C and the peak separation at -60°C was ∼15 Hz. However, the resonances were still broad, and Δν would probably be larger at the limiting spectrum.
  • 40
    • 0032136525 scopus 로고    scopus 로고
    • 2 is also on occasion a byproduct of allyl formation. See (a) Wasserman, E.; Hsi, E.; Young, W.-T. Polym. Prepr. (Am. Chem. Soc., Div. Polym. Chem.) 1998, 39, 425.
    • 2 is also on occasion a byproduct of allyl formation. See (a) Wasserman, E.; Hsi, E.; Young, W.-T. Polym. Prepr. (Am. Chem. Soc., Div. Polym. Chem.) 1998, 39, 425.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.