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Volumn 47, Issue 28, 2006, Pages 4797-4801

Effects of reaction temperature and acyl group for lipase-catalyzed chiral binaphthol synthesis

Author keywords

[No Author keywords available]

Indexed keywords

2 NAPHTHOL; 2,2' DIHYDROXY 1,1' BINAPHTHYL; O BUTYRYL 2,2' DIHYDROXY 1,1' BINAPHTHYL; O BUTYRYL 6,6' DIBROMO 2,2' DIHYDROXY 1,1' BINAPHTHYL; TRIACYLGLYCEROL LIPASE; UNCLASSIFIED DRUG;

EID: 33744828717     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2006.05.056     Document Type: Article
Times cited : (22)

References (41)
  • 35
    • 33744818309 scopus 로고    scopus 로고
    • note
    • +.
  • 36
    • 33744813116 scopus 로고    scopus 로고
    • note
    • +).
  • 37
    • 33744798604 scopus 로고    scopus 로고
    • note
    • The immobilized Candida antarctica lipase B (CALB) was provided by Novo Nordisk Co., Ltd. as CHIRAZYME L-2 (5 KU/g).
  • 38
    • 33744796378 scopus 로고    scopus 로고
    • note
    • General procedure: CALB (40 mg) and n-butanol (0.672 mmol) were added to a solution of O-acyl binaphthol (±)-2 or (±)-3 (0.0672 mmol) and acetophenone (2.0 mg, standard substance) in solvent (2 mL) and the resulting mixture was stirred at 30-80 °C. The reaction conversion and enantiomeric excess were determined using HPLC (column, Daicel Chiralcel OG; mobile phase, hexane/2-propanol = 15:1; flow rate, 0.5 mL/min; UV detection at 254 nm). E values were calculated according to literature (see Ref. 31). Absolute configurations of the products were determined using HPLC (OG column) data of commercially available (R) and (S) BINOL.
  • 40
    • 33744819294 scopus 로고    scopus 로고
    • note
    • 20 +32.6 (c 1.0, THF)}.
  • 41
    • 33744806206 scopus 로고    scopus 로고
    • note
    • Procedure of (R)-4 and (S)-5: CALB (40 mg) and alcohol (0.672 mmol) were added to a solution of (±)-5 (0.0672 mmol) and acetophenone (2.0 mg, standard substance) in toluene (2 mL) and the resulting mixture was stirred at 80 °C. The reaction conversion and enantiomeric excess were determined using HPLC (column, Daicel Chiralcel OD; mobile phase, hexane/2-propanol = 9:1; flow rate, 0.5 mL/min; UV detection at 254 nm). E values were calculated according to literature (see Ref. 31). Absolute configurations of the products were determined using HPLC (OD column) data of (R)-4 which was derived from commercially available (R)-BINOL.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.