How do you identify #alpha# and #beta# forms in sugars?
1 Answer
You look at the position of the
Explanation:
The cyclic forms of carbohydrates can exist in α and β forms, based on the position of the substituent at the anomeric carbon.
To assign the α or β configuration to the cyclic form of a carbohydrate, look at the relative positions of the
(from chemistry2.csudh.edu)
If you consider the 6-membered ring to be flat, the exocyclic
The
In the β- form, the exocyclic
Lactose is a disaccharide that consists of galactose and glucose units.
(from www.studydroid.com)
Its systematic name is β-D-galactopyranosyl-(1→4)-D-glucose.
That tells you that the
If the glucose unit has the anomeric
If the glucose unit has the anomeric