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Volumn 45, Issue 15, 2006, Pages 2449-2453

A practical approach to the resolution of racemic N-benzyl α-amino acids by liquid-liquid extraction with a lipophilic chiral salen-cobalt(III) complex

Author keywords

Amino acids; Chiral resolution; Cobalt; Molecular recognition; N,O ligands

Indexed keywords

CHIRAL RESOLUTION; MOLECULAR RECOGNITION; N,O LIGANDS;

EID: 33746317330     PISSN: 14337851     EISSN: None     Source Type: Journal    
DOI: 10.1002/anie.200504116     Document Type: Article
Times cited : (70)

References (43)
  • 3
  • 23
    • 33746298002 scopus 로고    scopus 로고
    • note
    • III(ent-1)(N-Bn-Ala)]) and the uncomplexed amino acid, respectively (see Ref. [8]).
  • 35
    • 33746289472 scopus 로고    scopus 로고
    • note
    • 2O solution (5:1), see Refs. [8,9]). The results obtained by Fujii et al. could be nicely reproduced by performing this separation under the original conditions.
  • 39
    • 33746287105 scopus 로고    scopus 로고
    • note
    • III(3)(OAc)] improved from 75.0% to 93.0 % ee when the temperature was lowered from 25°C to 10°C. Extractions run at room temperature (not thermostated) gave erratic results (83 ± 10% ee).
  • 40
    • 33746272525 scopus 로고    scopus 로고
    • note
    • The variation of other parameters (stirring speed, concentrations, type of reaction vessel) did not significantly affect the extraction results (yields and enantioselectivities). Once the extraction was complete, the enantiomeric excesses did not vary over additional time.
  • 42
    • 33746272116 scopus 로고    scopus 로고
    • note
    • II(3)] recovery process is under active investigation in our laboratories.
  • 43
    • 33746318284 scopus 로고    scopus 로고
    • note
    • II(3)].


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.