Glycoside - Wikipedia
网页In chemistry, a glycoside / ˈ ɡ l aɪ k ə s aɪ d / is a molecule in which a sugar is bound to another functional group via a glycosidic bond. Glycosides play numerous important roles in living organisms.
糖苷 - 维基百科，自由的百科全书
网页糖 苷 gān [註 1] （英語： glycoside）简称 苷，旧称 甙，是 单糖 或 寡糖 分子通过 糖苷键 与另一个非糖 化合物 或 官能团 缩合 而成的含糖衍生物，即由糖与非糖物质结合而成的一类化合物。. 根据糖苷键原子的不同，分为氧苷、氮苷、硫苷、碳苷 [4][5][3]。. 糖苷 ...
Glycoside | Carbohydrate, Sugar & Structure | Britannica
网页glycoside, any of a wide variety of naturally occurring substances in which a carbohydrate portion, consisting of one or more sugars or a uronic acid (i.e., a sugar acid), is combined with a hydroxy compound. The hydroxy compound, usually a non-sugar entity (aglycon), such as a derivative of phenol or an alcohol, may also be another ...
糖苷及糖苷键 - 百度百科
网页单糖环状结构中的 半缩醛羟基 较活泼，可与其他分子的羟基（或活泼氢原子）脱水缩合形成糖苷（glycoside）。 如 β-D-葡萄糖 和甲醇缩合，生成β-D- 甲基葡萄糖苷 。
Glycoside - an overview | ScienceDirect Topics
网页Glycosides are colorless crystalline materials that contain hydrogen and oxygen atoms; however, some glycosides contain nitrogen and sulfur and are usually water-soluble botanical ingredients (Fig. 12.3). Old names for glycosides usually have an “in” suffix, and the names mainly include the source of the glycoside, for example, Strophanthus ...
Glycosides - Chemistry LibreTexts
网页2023年1月23日 · In naming of glycosides, the "ose" suffix of the sugar name is replaced by "oside", and the alcohol group name is placed first. As is generally true for most acetals, glycoside formation involves the loss of an equivalent of water. The diether product is stable to base and alkaline oxidants such as Tollen's reagent.
Glycoside - an overview | ScienceDirect Topics
网页Glycosides are the plant secondary metabolites containing a sugar moiety that is attached with non-sugar portions. The binding between the sugar and nonsugar moiety leads to the formation of hemiacetal. It includes the alcoholic or phenolic hydroxyl group of nonsugar and aldehyde or keto group of sugar moiety.
Glycosides, Synthesis and Characterization | SpringerLink
网页A glycoside is formed when the anomeric carbon of a sugar is connected through an heteroatom (except with C-glycosides) with an aliphatic or aromatic fragment known as aglycon. The glycosidic bond is formed when a nucleophile (alcohol, amine, thiol or carbanion) substitutes the hydroxyl group at the anomeric position, …
Glycoside - Chemistry LibreTexts
网页2022年2月28日 · When the hydroxy group on the hemiacetal carbon or on the hemiketal carbon in the molecule of a cyclic monosaccharide is replaced with an alkoxy group, the resultant compound is called a glycoside. eg. 1:
20.6: Glycosides - Chemistry LibreTexts
网页The bonding is through oxygen to the carbonyl carbon, as in the α α - and β β -methylglucosides discussed in Section 20-4A, to give acetal or ketal structures. These substances are sometimes simply called glycosides, but it is desirable to specify that the bonding is through oxygen by using the name O O -glycoside.