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Volumn 5, Issue 1, 2008, Pages 30-33

Bismuth(III) triflate-catalyzed dehydrative glycosidation using 1-hydroxy sugars

Author keywords

1,1' disaccharide; 1 hydroxy sugar; Bismuth(III) triflate; Glycosidation; Glycoside

Indexed keywords


EID: 38949216070     PISSN: 15701786     EISSN: None     Source Type: Journal    
DOI: 10.2174/157017808783330289     Document Type: Article
Times cited : (8)

References (19)
  • 2
    • 0012862791 scopus 로고    scopus 로고
    • Ernst, B, Hart G. W, Sinay, P. Eds, Wiley-VCH: Weinheim
    • b) Panza, L.; Lay, L. In Carbohydrates in Chemistry and Biology; Ernst, B.; Hart G. W.; Sinay, P. Eds.; Wiley-VCH: Weinheim, 2000; Vol. 1, pp. 195-237;
    • (2000) Carbohydrates in Chemistry and Biology , vol.1 , pp. 195-237
    • Panza, L.1    Lay, L.2
  • 4
    • 33646443276 scopus 로고    scopus 로고
    • Recent references cited therein
    • d) Aoyama, N.; Kobayashi, S. Chem. Lett., 2006, 35, 238-239. Recent references cited therein.
    • (2006) Chem. Lett , vol.35 , pp. 238-239
    • Aoyama, N.1    Kobayashi, S.2
  • 10
    • 33644902624 scopus 로고    scopus 로고
    • 3 Adinolfi, M.; Iadonisi, A.; Ravida, A.; Valerio, S. Tetrahedron Lett., 2006, 47, 2595;
    • 3 Adinolfi, M.; Iadonisi, A.; Ravida, A.; Valerio, S. Tetrahedron Lett., 2006, 47, 2595;
  • 12
    • 38949159913 scopus 로고    scopus 로고
    • Anhydrous calcium sulfate was used as a scavenger for water. We have already investigated the glycosidation catalyzed by a Lewis acid in the presence of several anhydrous salts. Yamanoi, T, Nagamaya, S, Ishida, H.-K, Nishikido, J, Inazu, T. Synth. Commun, 2001, 31, 899
    • Anhydrous calcium sulfate was used as a scavenger for water. We have already investigated the glycosidation catalyzed by a Lewis acid in the presence of several anhydrous salts. Yamanoi, T.; Nagamaya, S.; Ishida, H.-K.; Nishikido, J.; Inazu, T. Synth. Commun., 2001, 31, 899.
  • 13
    • 38949089905 scopus 로고    scopus 로고
    • Typical glycosidation procedure (Table 1, Entry 4, To a stirred solution of Bi(OTf)3 (5.4 mg, 0.008 mmol) and 5 (20.3 mg, 0.17 mmol) in CH2Cl2 (3 mL) was added 1 (89.2 mg, 0.17 mmol) in the presence of anhydrous CaSO4 (ca. 100 mg) under an Ar atmosphere. The resulting mixture was stirred at reflux temperature for 1.5 min. The reaction was then quenched by the addition of a sat. NaHCO3 solution (5 mL, The reaction mixture was extracted with ethyl acetate, and the organic layer was washed with water and a sat NaCl solution. After the organic layer was dried over Na2SO4, the solvent was evaporated under reduced pressure. The crude product was purified by preparative silica gel TLC (ethyl acetate/hexane=1/3) to give the desired glycoside 10 (92.4 mg, 87, as a colorless oil and the 1,1′-disaccharide 19 α, β-mixture, 8.3 mg, 9, as a colorless oil. All the other glycosides 11-18
    • 4, the solvent was evaporated under reduced pressure. The crude product was purified by preparative silica gel TLC (ethyl acetate/hexane=1/3) to give the desired glycoside 10 (92.4 mg, 87%) as a colorless oil and the 1,1′-disaccharide 19 (α, β-mixture, 8.3 mg, 9%) as a colorless oil. All the other glycosides 11-18 were similarly prepared and purified by preparative silica gel TLC (11, 12, 14-18: ethyl acetate/hexane = 1/3; 13: toluene/ethyl acetate = 10/1). The spectral data of 11-14, 16, 19-21 are reported in the literatures.
  • 14
    • 13244275046 scopus 로고    scopus 로고
    • See, 11: Nagai, H.; Sasaki, K.; Matsumura, S.; Toshima, K. Carbohydr. Res., 2005, 340, 337;
    • See, 11: Nagai, H.; Sasaki, K.; Matsumura, S.; Toshima, K. Carbohydr. Res., 2005, 340, 337;
  • 15
    • 0034630905 scopus 로고    scopus 로고
    • 12 and 13: Garcia, B. A.; Gin, D. Y. J. Am. Chem. Soc., 2000, 122, 4269;
    • 12 and 13: Garcia, B. A.; Gin, D. Y. J. Am. Chem. Soc., 2000, 122, 4269;
  • 18
    • 0002863675 scopus 로고    scopus 로고
    • 19, 20 and 21: Pavia, A. A.; Rocheville, J.-M.; Ung, S. N. Carbohydr. Res., 1980, 79,79.
    • 19, 20 and 21: Pavia, A. A.; Rocheville, J.-M.; Ung, S. N. Carbohydr. Res., 1980, 79,79.
  • 19
    • 38949192078 scopus 로고    scopus 로고
    • 2Phβ)
    • 2Phβ), 73.1 (α), 73.36 (β), 73.41 (α), 74.6 (β), 74.80 (β), 74.82 (α), 74.9 (β), 75.59 (β), 75.60 (α), 77.6 (α), 77.8 (β), 80.0 (C-2α), 81.9 (α), 82.2 (β), 84.6 (β), 96.8 (C-1α), 103.6 (C-1β)


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.