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Volumn 47, Issue 39, 2006, Pages 7037-7042

Novel axially chiral bis-arylthiourea-based organocatalysts for asymmetric Friedel-Crafts type reactions

Author keywords

[No Author keywords available]

Indexed keywords

ALKENE DERIVATIVE; INDOLE DERIVATIVE; THIOUREA DERIVATIVE;

EID: 33747762352     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.07.112     Document Type: Article
Times cited : (145)

References (51)
  • 20
    • 0142072631 scopus 로고    scopus 로고
    • For examples of asymmetric organocatalytic addition reactions to nitroolefins using thioureas see:
    • For examples of asymmetric organocatalytic addition reactions to nitroolefins using thioureas see:. Okino T., Hoashi Y., and Takemoto Y. J. Am. Chem. Soc. 125 (2003) 12672
    • (2003) J. Am. Chem. Soc. , vol.125 , pp. 12672
    • Okino, T.1    Hoashi, Y.2    Takemoto, Y.3
  • 34
    • 0000457126 scopus 로고
    • For the use of bis-N-arylthioureas in other catalytic processes see:
    • For the use of bis-N-arylthioureas in other catalytic processes see:. Curran D.P., and Kuo L.H. J. Org. Chem. 59 (1994) 3259
    • (1994) J. Org. Chem. , vol.59 , pp. 3259
    • Curran, D.P.1    Kuo, L.H.2
  • 39
    • 33747770365 scopus 로고    scopus 로고
    • note
    • For discussion, see Ref. 21.
  • 40
    • 4344713238 scopus 로고    scopus 로고
    • Thiourea catalysts for asymmetric Pictet-Spengler reactions which do not incorporate N-aryl substituents:
    • Thiourea catalysts for asymmetric Pictet-Spengler reactions which do not incorporate N-aryl substituents:. Taylor M.S., and Jacobsen E.N. J. Am. Chem. Soc. 126 (2004) 10558
    • (2004) J. Am. Chem. Soc. , vol.126 , pp. 10558
    • Taylor, M.S.1    Jacobsen, E.N.2
  • 41
    • 33747749568 scopus 로고    scopus 로고
    • note
    • 3 as the optimal solvent in these catalysed reactions.
  • 43
    • 33747790303 scopus 로고    scopus 로고
    • note
    • Crystallographic data for 13 have been deposited with the Cambridge Crystallographic Data Centre, deposit number CCDC609063.
  • 44
    • 33747769353 scopus 로고    scopus 로고
    • note
    • 1H NMR spectrum of 13.
  • 45
    • 37049092261 scopus 로고
    • For examples of the demonstrable s-cis,cis conformational preference of thioureas see:
    • For examples of the demonstrable s-cis,cis conformational preference of thioureas see:. Tel R.M., and Engberts J.B.F.N. J. Chem. Soc., Perkin Trans. 2 (1976) 483
    • (1976) J. Chem. Soc., Perkin Trans. 2 , pp. 483
    • Tel, R.M.1    Engberts, J.B.F.N.2
  • 50
    • 33747776517 scopus 로고    scopus 로고
    • note
    • The X-ray crystal structure of cyclohexyl-substituted urea-based catalyst 8 exhibited an s-cis,cis urea conformation. The distance between the urea hydrogen atoms is 2.12 Å.
  • 51
    • 33747773098 scopus 로고    scopus 로고
    • note
    • + requires 849.0992. Found 849.1013.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.