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Volumn 57, Issue 11, 2009, Pages 1179-1188

Development of dinuclear vanadium catalysts for enantioselective coupling of 2-naphthols via a dual activation mechanism

Author keywords

1,1 bi 2 naphthol; Chiral catalyst; Dinuclear vanadium complex; Dual activation; Enantioselective oxidative coupling

Indexed keywords

2 NAPHTHOL; VANADIUM;

EID: 71049126637     PISSN: 00092363     EISSN: 13475223     Source Type: Journal    
DOI: 10.1248/cpb.57.1179     Document Type: Review
Times cited : (36)

References (89)
  • 42
    • 71049117678 scopus 로고    scopus 로고
    • note
    • a refers to the axial chirality of 1,1′-binaphthyl and S to the carbon central chirality on the amino acid derived moieties.
  • 43
    • 0346724626 scopus 로고    scopus 로고
    • Gao reported promising results on oxidative coupling reaction of 2-naphthol promoted by dinuclear copper catalysts, though 7 d are required for the complete attainment
    • Gao reported promising results on oxidative coupling reaction of 2-naphthol promoted by dinuclear copper catalysts, though 7 d are required for the complete attainment; Gao J., Reibenspies J. H., Martell A. E., Angew. Chem. Int. Ed., 42, 6008-6012 (2003).
    • (2003) Angew. Chem. Int. Ed. , vol.42 , pp. 6008-6012
    • Gao, J.1    Reibenspies, J.H.2    Martell, A.E.3
  • 49
  • 73
    • 33646563768 scopus 로고    scopus 로고
    • The vanadium(IV) complexes are readily oxidized to afford a vanadium(V) species during recrystallization in air. also see ref. 62
    • The vanadium(IV) complexes are readily oxidized to afford a vanadium(V) species during recrystallization in air. Pawar V. D., Bettigeri S., Weng S.-S., Kao J.-Q., Chen C.-T., J. Am. Chem. Soc., 128, 6308-6309 (2006), also see ref. 62.
    • (2006) J. Am. Chem. Soc. , vol.128 , pp. 6308-6309
    • Pawar, V.D.1    Bettigeri, S.2    Weng, S.-S.3    Kao, J.-Q.4    Chen, C.-T.5
  • 74
    • 71049116401 scopus 로고    scopus 로고
    • Crystallographic data for structural analysis have been deposited with the Cambridge Crystallographic Data Centre, CCDC No. 666356. Copies of this information may be obtained free of charge from The Director, CCDC, 12 Union Road, Cambridge, CB2 1EZ UK fax: +44-1223-336033; e-mail: deposit@ccdc.cam.ac.uk
    • Crystallographic data for structural analysis have been deposited with the Cambridge Crystallographic Data Centre, CCDC No. 666356. Copies of this information may be obtained free of charge from The Director, CCDC, 12 Union Road, Cambridge, CB2 1EZ UK (fax: +44-1223-336033; e-mail: deposit@ccdc.cam.ac. uk. or www: http://www.ccdc.cam.ac.uk).
  • 76
    • 71049115539 scopus 로고    scopus 로고
    • note
    • a,S,S)-2 (5468.0 eV) and mononuclear vanadium(V) complex (S)-11 (5468.0 eV).
  • 77
    • 71049191467 scopus 로고    scopus 로고
    • note
    • 5 as vanadium(IV) and (V) standards are 38 and 0 emu/mol respectively.
  • 78
    • 71049171677 scopus 로고    scopus 로고
    • note
    • a,S,S)-2.
  • 79
    • 71049136551 scopus 로고    scopus 로고
    • note
    • 3 promoted a coupling reaction of 2-naphthol to afford (S)-BINOL with 96% yield and 85% ee at 30°C in 24 h under air.
  • 86
    • 71049126139 scopus 로고    scopus 로고
    • note
    • 2.
  • 87
    • 71049159184 scopus 로고    scopus 로고
    • note
    • 4, 88% yield, 11% ee). This may be attributable to an instability of the catalyst (personal communication).
  • 88
    • 71049158007 scopus 로고    scopus 로고
    • note
    • 4 showed an existence of the dimeric and trimeric dinuclear vanadium complexes, most of the catalyst was insolvated. Further studies aimed at elucidating active species in CCl4 and its mechanism are currently in progress.


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