期刊
CARBOHYDRATE RESEARCH
卷 340, 期 2, 页码 303-307出版社
ELSEVIER SCI LTD
DOI: 10.1016/j.carres.2004.11.012
关键词
organozinc reagents; alkyl and aryl C-pyranosides; Ferrier rearrangement
The reaction of 1,2-dihydropyranyl acetates with dimethylzinc, diethylzinc and diphenylzinc in the presence of CF3COOH gave the corresponding alky and aryl C-pyranosides via a Ferrier rearrangement in excellent yields. Use of the organo-zinc species, CF3CO2ZnPh, reacted with high stereoselectivity to give the phenyl C-glycosides. Arylzinc chlorides could also be successfully applied to this reaction in the presence of BF3-OEt2. (C) 2004 Elsevier Ltd. All rights reserved.
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