메뉴 건너뛰기




Volumn 14, Issue 35, 2008, Pages 10909-10914

Highly ylidic imidazoline-based fulvenes as suitable precursors for the synthesis of imidazolium-substituted metallocenes

Author keywords

Cyclopentadienyl ligands; Iron; Metallocenes; Nitrogen heterocycles; Ylides

Indexed keywords

ATOMS; IONIZATION OF LIQUIDS; LIGANDS; LIQUIDS; MAGNETIC RESONANCE; NUCLEAR MAGNETIC RESONANCE; ORGANOMETALLICS;

EID: 57249091440     PISSN: 09476539     EISSN: 15213765     Source Type: Journal    
DOI: 10.1002/chem.200801956     Document Type: Article
Times cited : (33)

References (44)
  • 1
    • 0002891073 scopus 로고
    • in Adv
    • Reviews: a
    • Reviews: a) P. Yates in Adv. Alicyclic Chem. 1968, 2, 59-184;
    • (1968) Alicyclic Chem , vol.2 , pp. 59-184
    • Yates, P.1
  • 6
    • 57249087988 scopus 로고    scopus 로고
    • M. Neuenschwander in The Chemistry of Double-bonded Functional Groups, (Ed.: S. Patai), Suppl. A, 2/2, Wiley & Sons, Chichester, 1989.
    • c) M. Neuenschwander in The Chemistry of Double-bonded Functional Groups, (Ed.: S. Patai), Suppl. A, Vol 2/2, Wiley & Sons, Chichester, 1989.
  • 13
    • 57249087987 scopus 로고    scopus 로고
    • Metallocenes (Eds.: A. Togni, R. L. Halterman), Wiley-VCH, Weinheim, 1998.
    • Metallocenes (Eds.: A. Togni, R. L. Halterman), Wiley-VCH, Weinheim, 1998.
  • 14
    • 57249087989 scopus 로고    scopus 로고
    • Reviews: a Ionic Liquids in Synthesis (Eds.: P. Wasserscheid, T. Welton), Wiley-VCH. Weinheim. 2008;
    • Reviews: a) Ionic Liquids in Synthesis (Eds.: P. Wasserscheid, T. Welton), Wiley-VCH. Weinheim. 2008;
  • 17
    • 33947660881 scopus 로고    scopus 로고
    • For examples of catalysts for IL with imidazolium moieties attached at ligands see
    • a) E. Becker, V. Stingl, G. Dazinger, K. Mereiter, K. Kirchner, Organometallics 2007, 26, 1531-1535. For examples of catalysts for IL with imidazolium moieties attached at ligands see:
    • (2007) Organometallics , vol.26 , pp. 1531-1535
    • Becker, E.1    Stingl, V.2    Dazinger, G.3    Mereiter, K.4    Kirchner, K.5
  • 32
    • 57249099840 scopus 로고    scopus 로고
    • 2: colorless crystal (polyhedron, dimensions 0.36 × 0.22 × 0.16 mm3, crystal system monoclinic, space group P21/c, Z, 4, 10.7219(14, b, 9.0659(11, c, 13.7840(17) Å, β, 110.594(2)°, V, 1254.2(3) Å3, ρ, 1.356 g cm-3 T, 200(2) K. θmax, 28.30°. radiation MoKα, λ, 0.71073 Å, 0.3° ω scans with CCD area detector, covering a whole sphere in reciprocal space, 12804 reflections measured, 3107 unique (R(int, 0.0264, 2712 observed (I > 2σ(I, μ, 0.13 mm-1, T mim, 0.96, Tmax, 0.98, 159 parameters refined, hydrogen atoms were treated by using appropriate riding models, goodness of fit 1.14 for observed reflections, final residual values R1(F, 0.062. WRF 2, 0.146 for observed reflections, residual electron density -0.22 to 0
    • Kα, A = 0.71073 A, 0.3° ω scans with CCD area detector, covering a whole sphere in reciprocal space, 17979 reflections measured.
  • 33
    • 0001752768 scopus 로고    scopus 로고
    • Cambridge Structural Database, F. H. Allen, Acta Crystallogr. Sect. B 2002, 58, 380-388.
    • Cambridge Structural Database, F. H. Allen, Acta Crystallogr. Sect. B 2002, 58, 380-388.
  • 34
    • 37049076890 scopus 로고    scopus 로고
    • Electronic stabilization of a ylidic structure by an aromatic imidazolium moiety is also observed in the case of 2-methylenimidazoline. which also shows ylidic reactivity. Kuhn el al. found a mean C=C bond length of 1.362 A. whereas the bond length is shorter in 2-methylenimidazolidine (1.330 A) or an acyclic ketene N,N-acetal (1.333 Å, a) N. Kuhn, H. Bohnen, J. Kreutzberger, D. Bläser, R. Boese, J. Chem. Soc. Chem. Commun. 1993, 1136-1137;
    • Electronic stabilization of a ylidic structure by an aromatic imidazolium moiety is also observed in the case of 2-methylenimidazoline. which also shows ylidic reactivity. Kuhn el al. found a mean C=C bond length of 1.362 A. whereas the bond length is shorter in 2-methylenimidazolidine (1.330 A) or an acyclic ketene N,N-acetal (1.333 Å): a) N. Kuhn, H. Bohnen, J. Kreutzberger, D. Bläser, R. Boese, J. Chem. Soc. Chem. Commun. 1993, 1136-1137;
  • 40
    • 57249097314 scopus 로고    scopus 로고
    • 4]: 1-Butyl-3-methylimidazolium tetrafluoroborate.
    • 4]: 1-Butyl-3-methylimidazolium tetrafluoroborate.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.