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Volumn , Issue 6, 2007, Pages 885-888

Organocatalytic asymmetric conjugate nucleophilic glyoxylation

Author keywords

Aminonitriles; Glyoxylation; Iminium activation; Organocatalysis; Umpolung

Indexed keywords

ESTER DERIVATIVE;

EID: 34247111301     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-970787     Document Type: Article
Times cited : (30)

References (67)
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    • (b) Patel, D. V.; Rielly-Gauvin, K.; Ryono, D. E.; Free, C. A.; Smith, S. A.; Petrillo, E. W. J Med. Chem. 1993, 36, 2431.
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    • 47749122232 scopus 로고    scopus 로고
    • Berkessel, A, Gröger, H, Eds, Wiley-VCH: Weinheim
    • (a) Asymmetric Organocatalysis; Berkessel, A.; Gröger, H., Eds.; Wiley-VCH: Weinheim, 2005.
    • (2005) Asymmetric Organocatalysis
  • 51
    • 84877935319 scopus 로고    scopus 로고
    • These data can be obtained free of charge from the Cambridge Crystallographic Data Center via
    • CCDC 631143 contains the supplementary crystallographic data for this paper. These data can be obtained free of charge from the Cambridge Crystallographic Data Center via www.ccdc.cam.ac.uk/data_request/cif.
    • CCDC 631143 contains the supplementary crystallographic data for this paper
  • 63
  • 66
    • 33746470627 scopus 로고    scopus 로고
    • Introduction of the Cyanide Group by Addition to C=O
    • Murahashi, S.-I, Ed, Georg Thieme Verlag: Stuttgart
    • (o) North, M. Introduction of the Cyanide Group by Addition to C=O, In Science of Synthesis, Vol. 19; Murahashi, S.-I., Ed.; Georg Thieme Verlag: Stuttgart, 2004, 285.
    • (2004) Science of Synthesis , vol.19 , pp. 285
    • North, M.1
  • 67
    • 34247125016 scopus 로고    scopus 로고
    • All new compounds were fully characterised (IR, NMR, MS, elemental analysis, optical rotation, melting point, Organocatalytic Asymmetric Nucleophilic Glyoxylation to 8a, Typical Procedure To a solution of the aminonitrile 1 (840 mg, 4 mmol) in toluene (4.0 mL) were added the aldehyde 3a (280 mg, 0.33 mL, 4 mmol) and the catalyst (S)-2 (293 mg, 20 mol, The reaction mixture was stirred at r.t. for 2 d, quenched with brine and extracted three times with Et2O (10 mL, The organic layer was dried over MgSO4 and concentrated in vacuo. The crude product 4a was dissolved in anhyd THF (8.0 mL, cooled to 0°C and NaBH4 (453 mg, 12 mmol) was added. The suspension was slowly treated with MeOH (2 mL, using a syringe pump. After stirring for 1 h, the mixture was quenched with sat. NH4Cl solution, the organic phase separated and the aqueous phase extracted three times with Et2O 10 mL, The combi
    • 4Si: C, 60.72; H, 10.19. Found: C, 60.91; H, 10.08.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.