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Volumn 16, Issue 15, 2005, Pages 2515-2519

Highly stereoselective preparation of (3R,4S)-3,4-chromanediol by deracemization of (±)-3-hydroxy-4-chromanone by Trichosporon cutaneum

Author keywords

[No Author keywords available]

Indexed keywords

4 CHROMANONE DERIVATIVE;

EID: 23644435762     PISSN: 09574166     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetasy.2005.06.020     Document Type: Article
Times cited : (10)

References (20)
  • 15
    • 33644577981 scopus 로고    scopus 로고
    • note
    • Typical procedure: To a slurry of 3 g (wet weight) of Trichosporon cutaneum CCT 1903 and glucose (1 g) in different phosphate buffers (50 mL), a solution of (±)-2 (50 mg) in ethanol (0.5 mL) was added. Experiments were also performed in different phosphate buffers (50 mL) in the absence of glucose. The resulting suspensions were stirred on an orbital shaker (150 rpm) at 28°C until complete consumption of 2. After centrifugation, the supernatants were thoroughly extracted with ethyl acetate. Purification of the crude product was achieved by flash column chromatography on silica gel, using hexane/ethyl acetate (2:1 and 1:1) as eluent.
  • 16
    • 33644564677 scopus 로고    scopus 로고
    • note
    • This strain is stored at 'André Tosello' Research Foundation (Brazil). Synonym Trichosporon beigelli (Kuechenmeister & Rabenhorst) Vuillemin. It was cultivated in 2% SDB (Sabouraud dextrose broth, 1 L) for 2-3 days incubation at 28°C on an orbital shaker (150 rpm) before use. The cells were harvested by centrifugation (5000 rpm).
  • 17
    • 33644561591 scopus 로고    scopus 로고
    • note
    • 3: 166.06299.
  • 18
    • 33644563988 scopus 로고    scopus 로고
    • note
    • The ee of diol 3 was determined by GC-MS (Shimadzu QP-5000) analysis through a Chirasil-dex capillary chiral column (30 m × 0.25 mm × 0.25 μm), after isolation by flash column chromatography (vide supra Ref. 11) and conversion to the corresponding acetonide derivative.
  • 19
    • 33644562986 scopus 로고    scopus 로고
    • note
    • +•, 31%), 148 (1%), 131 (3%), 120 (86%), 121 (100%), 104 (14%), 91 (9%), 77 (14%), 65 (11%), 51 (8%).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.