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Volumn 41, Issue 36, 2000, Pages 6941-6944

Lithium N-trityl-N-(R)-1-phenethylamide, a readily available and useful base for the enantioselective formation of chiral enolates from achiral ketones

Author keywords

[No Author keywords available]

Indexed keywords

CYCLOHEXANONE DERIVATIVE; KETONE DERIVATIVE; LITHIUM DERIVATIVE;

EID: 0034596456     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/S0040-4039(00)01185-0     Document Type: Article
Times cited : (35)

References (21)
  • 8
    • 85037931109 scopus 로고    scopus 로고
    • Enantiomeric excess of 7 was determined by transformation to 8 and analysis of 8 by HPLC using a Chiral Technologies Inc. Chiralpak AD column with 5% isopropyl alcohol in hexane for elution; retention times: minor enantiomer 6.3 min, major enantiomer 8, 7.3 min; flow rate, 1 mL/min at 23°C
  • 9
    • 85037928580 scopus 로고    scopus 로고
    • Extractive work-up of the residue remaining from the distillation of silyl enol ether 7 allowed efficient recovery of the chiral amine 2
  • 12
    • 85037947765 scopus 로고    scopus 로고
    • The enol methoxycarboxyl ester of 5 was produce as a byproduct of the conversion 5→ in ca. 7% yield under these conditions; in the absence of TMEDA more of this byproduct was formed
  • 18
    • 85037948472 scopus 로고    scopus 로고
    • Retention times: minor enantiomer, 7.1 min; major enantiomer, 8.3 min
  • 21
    • 85037944955 scopus 로고    scopus 로고
    • 13C NMR and high resolution mass spectra using chromatographically purified or recrystallized samples


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.