- Knoevenagel condensation between C-glycoside and active methylene compounds without catalysts
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A Knoevenagel condensation reaction between a C-glycoside based aromatic aldehyde and cyclic active methylene compounds such as barbituric acid, thiobarbituric acid, 1,3-dimethylbarbituric acid, 5,5-dimethyl-1,3-cyclohexanedione, 2,2-dimethyl-1,3-dioxane-
- Gu, Xiaomin,Fang, Zhijie
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p. 683 - 686
(2016/11/18)
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- Effective friedel-crafts acylations of O- and C-arylglycosides with triflic acid
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Triflic acid is well known not only as a Friedel-Crafts promoter, but also as a deglycosidation reagent. In this study, we promote effective Friedel-Crafts acylations for O- or C-arylglucosides without deglycosidation and check their inhibitory activities for β-glucosidase.
- Hashimoto, Makoto,Takahashi, Miho
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p. 227 - 231
(2009/09/06)
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- O-Glycosyl Imidates, 19. - Reactions of Glycosyl Trichloroacetimidates with Silylated C-Nucleophiles
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Reaction of O-benzyl-protected α-glycopyranosyl trichloroacetimidates 1 and the xylo analogues 7 with silyl enol ethers or allyltrimethylsilane as C-nucleophiles yields with zink chloride as catalyst mainly or exclusively α-C-glycosides (5a-α to 5h-α, 8b,
- Hoffmann, Michael G.,Schmidt, Richard R.
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p. 2403 - 2419
(2007/10/02)
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