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Volumn 26, Issue 10, 2007, Pages 2747-2757

Achiral lanthanide alkyl complexes bearing N,O multidentate ligands. Synthesis and catalysis of highly heteroselective ring-opening polymerization of rac-lactide

Author keywords

[No Author keywords available]

Indexed keywords

CATALYSIS; LIGANDS; MOLECULAR STRUCTURE; ORGANOMETALLICS; PARAFFINS; RING OPENING POLYMERIZATION; STEREOSELECTIVITY; SYNTHESIS (CHEMICAL);

EID: 34249000000     PISSN: 02767333     EISSN: None     Source Type: Journal    
DOI: 10.1021/om0700359     Document Type: Article
Times cited : (284)

References (98)
  • 20
    • 0034741559 scopus 로고    scopus 로고
    • Recent reviews on the catalysts of LA polymerization, see: a
    • Recent reviews on the catalysts of LA polymerization, see: (a) O'Keefe, B.; Hillmyer, M.; Tolman, W. J. Chem. Soc., Dalton Trans. 2001, 2215-2224.
    • (2001) J. Chem. Soc., Dalton Trans , pp. 2215-2224
    • O'Keefe, B.1    Hillmyer, M.2    Tolman, W.3
  • 73
    • 34249062100 scopus 로고    scopus 로고
    • 13C NMR spectra for complexes 6-8, crystallographic data and structure refinements of complexes 1-5 and 7, and ORTEP drawings of complexes 2-5; see Supporting Information.
    • 13C NMR spectra for complexes 6-8, crystallographic data and structure refinements of complexes 1-5 and 7, and ORTEP drawings of complexes 2-5; see Supporting Information.
  • 87
    • 34249096842 scopus 로고    scopus 로고
    • 6 especially the yttrium alkyl group, shifting to lower-field region at δ = 0.09 from -0.6 ppm, indicating the change of geometry of the metal center.
    • 6 especially the yttrium alkyl group, shifting to lower-field region at δ = 0.09 from -0.6 ppm, indicating the change of geometry of the metal center.
  • 88
    • 19944365562 scopus 로고    scopus 로고
    • The Lewis acidity of the central metal ion influences the catalytic activity of the complex toward the polymerization of cyclohexene oxide with CO2; see: (a) Cui, D, Nishiura, M, Hou, Z. Macromolecules 2005, 38, 4089-4095
    • 2; see: (a) Cui, D.; Nishiura, M.; Hou, Z. Macromolecules 2005, 38, 4089-4095.
  • 93
    • 34249000422 scopus 로고    scopus 로고
    • Methyl-substituted phenol reacted with dimethylamino ethylene amine to afford H2L2-Me, treatment of which by Y(CH 2SiMe3)2THF2 gave L 2-MeY(CH2SiMe3)(THF, 2-Me, an analogue of 2. NMR data: δ 7.11 (s, 1H, C6H2, 6.88 (s, 1H, C6H2, 6.86 (s, 1H, C6H2, 6.82 (s, 1H, C6H2, 5.42 (s, 1H, ArCH2N, 5.39(s, 1H, ArCH2N, 5.07(s, 1H, ArCH2N, 5.04(s, 1H, ArCH2N, 3.69 (m, 4H, THF, 3.38 (s, 1H, ArCH2N, 3.35 (s, 1H, ArCH2N, 3.08 (s, 1H, ArCH2N, 3.05 (s, 1H, ArCH 2N, 2.80 (m, 2H, N(CH2CH3)2, 2.66 (m, 2H, N(CH2)2N, 2.51 (s, 3H, ArCH3, 2.44 (s, 3H, ArCH3, 2.40 (s, 3H, ArCH3, 2.32 (m, 2H, N(CH2)2
    • 3)).
  • 94
    • 34249063946 scopus 로고    scopus 로고
    • -1, respectively.
    • -1, respectively.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.