- Chinese name
- Glycosidic bond
- Foreign name
- glycosidic bond
- Alias
- Glycosidic bond
- Category
- Chemical bond
- Classification
- Oxygen glycoside bond, nitrogen glycoside bond, thioglycoside bond, carbon glycoside bond, etc
O-glycosidic bond is a sugar half acetal The hydroxyl group in structure can be mixed with other compounds containing hydroxyl group (such as alcohol Phenols )The acetal derivatives are condensed after dehydration and become glycosides. The chemical bond between them is the glycosidic bond. For glycosides, please refer to Baidu entry. Designation of glycosidic bonds [2] :
First, it is necessary to point out the glycosides Key connection Where is the sugar. Expression of glycoside bond: point out that the bond connects two carbon atom Location of, by Glycosyl The carbon level of is pointed by the arrow Ligands Carbon level, such as 1 → 4 or 1 → 6. If both sugar units are ligands to each other, they are represented by double arrows, such as 1 ↔ 1,1 ↔ 2。 Secondly, we should understand whether the glycosidic bond is α - or β -, and the configuration of the glycosidic bond is provided by Semiacetal Configuration determination of (ketone) hydroxyl group. Based on the above principles, the naming of glycosidic bonds starts from the first sugar group on the left, indicating that the configuration of each sugar group is Arabic numerals And numbers represent glycosidic bonds. For example: malt dust α - 1,4 glycoside bond , lactose Beta-1,4 glycoside bond , Galactose α - 1,6 glycoside bond. Here are some common Disaccharide Of Connection mode [3] : malt dust : α - 1,4 glycoside bond Isomaltose : α - 1,6 glycoside bond lactose 、 Cellobiose : beta-1,4 glycoside bond sucrose : α - 1-2 β glycoside bond Gentianobiose : beta-1,6 glycoside bond seaweed Disaccharides: α - 1,1 glycoside bond Melibiose : α - 1,6 glycoside bond chondroitin Disaccharides: beta-1,3 glycosidic bonds Hyaluronic disaccharide: beta-1,3 glycosidic bond
Inulin Disaccharides: β - 2,1 glycoside bond