Hsu SJ, Lin HC, Lin CH. Inter- and intramolecular glycosylation of exo-glycals promoted by metallic Lewis acids.
Carbohydr Res 2006;
341:1428-37. [PMID:
16650394 DOI:
10.1016/j.carres.2006.04.003]
[Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2006] [Revised: 03/18/2006] [Accepted: 04/01/2006] [Indexed: 11/18/2022]
Abstract
exo-Glycosyl carbonates were employed for inter- and intramolecular glycosylation reactions. A number of metallic Lewis Acids and solvents were examined to enhance the reactivity. The optimum conditions were found to be the use of AlCl3 in 1-nitropropane. The method was demonstrated to be useful for the intermolecular glycosyl transfer of several nucleophiles, including simple alcohols, sugars, and amino acid derivatives; however, intramolecular glycosylations were not successful.
Collapse