메뉴 건너뛰기




Volumn 7, Issue 3, 2005, Pages 483-485

Silver(I)-catalyzed addition of zirconocenes to glycal epoxides. A new synthesis of α-c-Glycosides

Author keywords

[No Author keywords available]

Indexed keywords

ALKYNE; EPOXIDE; GLYCOSIDE; SILVER DERIVATIVE; ZIRCONOCENE;

EID: 13844271406     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol0475414     Document Type: Article
Times cited : (30)

References (49)
  • 11
    • 13844251142 scopus 로고    scopus 로고
    • MS Thesis, University of Pittsburgh
    • Zhuang, N. MS Thesis, University of Pittsburgh, 1997.
    • (1997)
    • Zhuang, N.1
  • 30
    • 33845184508 scopus 로고
    • Glycal epoxides were prepared by Danishefsky's protocol: (a) Halcomb, R. L.; Danishefsky, S. J. J. Am. Chem. Soc. 1989, 111, 6661. (b) Adam, W.; Bialas, J.; Hadjiarapoglou, L. Chem. Ber. 1991, 124, 2377.
    • (1989) J. Am. Chem. Soc. , vol.111 , pp. 6661
    • Halcomb, R.L.1    Danishefsky, S.J.2
  • 31
    • 84985666791 scopus 로고
    • Glycal epoxides were prepared by Danishefsky's protocol: (a) Halcomb, R. L.; Danishefsky, S. J. J. Am. Chem. Soc. 1989, 111, 6661. (b) Adam, W.; Bialas, J.; Hadjiarapoglou, L. Chem. Ber. 1991, 124, 2377.
    • (1991) Chem. Ber. , vol.124 , pp. 2377
    • Adam, W.1    Bialas, J.2    Hadjiarapoglou, L.3
  • 36
    • 0035900172 scopus 로고    scopus 로고
    • 4 system for glycosyl transfer reactions of anomeric sulfoxides, see: Wipf, P.; Reeves, J. T. J. Org. Chem. 2001, 66, 7910.
    • (2001) J. Org. Chem. , vol.66 , pp. 7910
    • Wipf, P.1    Reeves, J.T.2
  • 37
    • 13844268358 scopus 로고    scopus 로고
    • note
    • Use of 1 equiv of silver perchlorate on Celite led to a fast conversion to give 4 in 85% yield.
  • 43
    • 13844263462 scopus 로고    scopus 로고
    • note
    • 2 (8:2, EtOAc:hexanes) to yield 39 mg (76%) of 4 as a colorless oil.
  • 44
    • 13844265007 scopus 로고    scopus 로고
    • note
    • In all reactions, a minor side product was derived from decomposition of the glycal epoxide under the Lewis acidic conditions. At lower temperatures (0°C), the conversion was similar, but the side product was also formed to a comparable extent.
  • 45
    • 13844251140 scopus 로고    scopus 로고
    • note
    • Both 4-octyne and 6-dodecyne were used under the typical reaction conditions, but no significant product formation was observed. The reaction with these substrates was not further optimized.
  • 46
    • 13844252581 scopus 로고    scopus 로고
    • note
    • Deactivating carbohydrate protecting groups such as acetates have proven unsatisfactory in previous work with glycal epoxides and were not explored in the present studies; see refs 10 and 71.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.