메뉴 건너뛰기




Volumn 352, Issue , 2003, Pages 136-142

Synthesis, structure and catalytic activity of new chiral nitrogen-containing ligands

Author keywords

Asymmetric catalysis; Schiff base; Tetradentate ligand

Indexed keywords

CATALYSIS; CATALYST ACTIVITY; CHELATION; COPPER COMPOUNDS; NITROGEN;

EID: 0043199893     PISSN: 00201693     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0020-1693(03)00131-2     Document Type: Article
Times cited : (22)

References (19)
  • 2
    • 84989536113 scopus 로고    scopus 로고
    • E.N. Jacobsen, W. Zhang, A.R. Muci, J.R. Ecker, L. Deng, J. Am. Chem. Soc., 113 (1991) 1055-1058, 7063-7064.
    • E.N. Jacobsen, W. Zhang, A.R. Muci, J.R. Ecker, L. Deng, J. Am. Chem. Soc., 113 (1991) 1055-1058, 7063-7064.
  • 14
    • 85031132605 scopus 로고    scopus 로고
    • See experimental section for details of measurement.
    • See experimental section for details of measurement.
  • 15
    • 0003653446 scopus 로고
    • Oak Ridge, TN: Oak Ridge National Laboratory
    • Johson C.K. ORTEPII, Rep. ORNL-5138. 1976;Oak Ridge National Laboratory, Oak Ridge, TN.
    • (1976) ORTEPII, Rep. ORNL-5138
    • Johson, C.K.1
  • 18
    • 0025042702 scopus 로고
    • Following the procedure of Masamune et al. the generation of the active species was attempted by in situ copper(II) complex formation of 5a and 6 followed by addition of phenylhydrazine to reduce them to the active copper(I) form. However, no reduction to this species was observed.
    • Lowenthal R.E., Abiko A., Masamune S. Tetrahedron Lett. 31:1990;6005-6008 Following the procedure of Masamune et al. the generation of the active species was attempted by in situ copper(II) complex formation of 5a and 6 followed by addition of phenylhydrazine to reduce them to the active copper(I) form. However, no reduction to this species was observed.
    • (1990) Tetrahedron Lett. , vol.31 , pp. 6005-6008
    • Lowenthal, R.E.1    Abiko, A.2    Masamune, S.3
  • 19
    • 85031130512 scopus 로고    scopus 로고
    • Surprisingly, with ligands 5a and 6, bearing aromatic groups, the major isomer of alcohol produced is R, while with 5b, 5c and 5d, bearing heteroaromatic units, the enantiomer in slight excess has S configuration. The determined ee values, although very small, are significant. However, in spite of the overall low selectivity this observation must be interpreted with great care.
    • Surprisingly, with ligands 5a and 6, bearing aromatic groups, the major isomer of alcohol produced is R, while with 5b, 5c and 5d, bearing heteroaromatic units, the enantiomer in slight excess has S configuration. The determined ee values, although very small, are significant. However, in spite of the overall low selectivity this observation must be interpreted with great care.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.