期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 74, 期 5, 页码 1994-2003出版社
AMER CHEMICAL SOC
DOI: 10.1021/jo8025274
关键词
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资金
- University of Buenos Aires
- National Research Council of Argentina (CONICET)
The synthesis of crystalline per-O-TBS-beta-D-galactofuranose (4 beta) as a new precursor of D-Galf units is described. Anomeric iodination by reaction with TMSI followed by in situ coupling with simple alcohols and a wide variety of glycosyl acceptors, in the absence of a promoter, was employed as a new efficient glycosylation method for the assembly Of D-galactofuranosyl moieties with high beta-stereoselectivity. Under the mild conditions of this reaction labile protective groups, like acetals, and furanosyl linkages are preserved.
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