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Volumn 70, Issue 10, 2005, Pages 4195-4198

Factors affecting stereocontrol during glycosidation of 2,3-oxazolidinone-protected 1-tolylthio-N-acetyl-D-glucosamine

Author keywords

[No Author keywords available]

Indexed keywords

ACTIVATION ANALYSIS; ALCOHOLS; CHEMICAL REACTIONS; FREE RADICALS; SUGARS;

EID: 18744406719     PISSN: 00223263     EISSN: None     Source Type: Journal    
DOI: 10.1021/jo047812o     Document Type: Article
Times cited : (84)

References (18)
  • 1
    • 0001094662 scopus 로고    scopus 로고
    • (a) Dwek, R. A. Chem. Rev. 1996, 96, 683-720.
    • (1996) Chem. Rev. , vol.96 , pp. 683-720
    • Dwek, R.A.1
  • 3
    • 0036462604 scopus 로고    scopus 로고
    • (c) Davis, B. G. Chem. Rev. 2002, 102, 579-601.
    • (2002) Chem. Rev. , vol.102 , pp. 579-601
    • Davis, B.G.1
  • 8
    • 0000331272 scopus 로고    scopus 로고
    • PST is a costly and difficult reagent to employ. It must be prepared in situ from benzenesulfenyl chloride and silver triflate, both of which are unstable and/or costly. See: (a) Martichonok, V.; Whitesides, G. M. J. Org. Chem. 1998, 61, 1702-1706.
    • (1998) J. Org. Chem. , vol.61 , pp. 1702-1706
    • Martichonok, V.1    Whitesides, G.M.2
  • 9
    • 0032554064 scopus 로고    scopus 로고
    • 2O either have been insufficient at promoting glycosylation of N-unsubstituted 2,3-oxazolidinone protected donors or form detrimental adducts with the oxazolidinone nitrogen, sequestering activating agent, and/or resulting in degradation of donor.
    • (1998) J. Am. Chem. Soc. , vol.120 , pp. 455-456
    • Crich, D.1    Sun, S.2
  • 11
    • 18744386218 scopus 로고    scopus 로고
    • note
    • 1-Tolylthio donor 1 was prepared in a manner identical to that previously reported for synthesis of the corresponding 1-phenylthio derivative (see ref 4).
  • 16
    • 18744414880 scopus 로고    scopus 로고
    • note
    • An alternative explanation for the slow formation of α-linked glycosides would be the gradual trapping of oxacarbenium cation intermediate upon dissociation of glycosyl triflate, thus affording a prototypical glycosaminyl donor bearing a nonparticipating C-2 substituent to provide α-linked glycoside.
  • 17
    • 18744378973 scopus 로고
    • All acceptors in this study were purchased from commercial sources except for monosaccharides 3f, 3h and 3i, which are known and were prepared based on previous procedures, (a) Wacek, A.; Leitinger, F.; Hochbahn, P. Monatsh. Chem. 1959, 90, 562-567.
    • (1959) Monatsh. Chem. , vol.90 , pp. 562-567
    • Wacek, A.1    Leitinger, F.2    Hochbahn, P.3


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.