Carbohydrate Practice: if you need a reference, read Chap 24, sections 24.6-24.8 1. What is the relationship between the following molecules? The choices are structural isomers, identical, enantiomers, diastereomers. HO HO O HO CHUCH OH € -H CH₂OH CH₂OH -OH 手 OH relationship: relationship
Carbohydrates
Carbohydrates are the organic compounds that are obtained in foods and living matters in the shape of sugars, cellulose, and starch. The general formula of carbohydrates is Cn(H2O)2. The ratio of H and O present in carbohydrates is identical to water.
Starch
Starch is a polysaccharide carbohydrate that belongs to the category of polysaccharide carbohydrates.
Mutarotation
The rotation of a particular structure of the chiral compound because of the epimerization is called mutarotation. It is the repercussion of the ring chain tautomerism. In terms of glucose, this can be defined as the modification in the equilibrium of the α- and β- glucose anomers upon its dissolution in the solvent water. This process is usually seen in the chemistry of carbohydrates.
L Sugar
A chemical compound that is represented with a molecular formula C6H12O6 is called L-(-) sugar. At the carbon’s 5th position, the hydroxyl group is placed to the compound’s left and therefore the sugar is represented as L(-)-sugar. It is capable of rotating the polarized light’s plane in the direction anticlockwise. L isomers are one of the 2 isomers formed by the configurational stereochemistry of the carbohydrates.
![Carbohydrate Practice: if you need a reference, read Chap 24, sections 24.6-24.8
1. What is the relationship between the following molecules? The choices are structural isomers, identical,
enantiomers, diastereomers.
a.
b.
HO
0
НО
H
"CH₂OH
OH HO
HO H
CH₂OH
H
OH
€
"H
CH₂OH
HO
H-
HO
0
CH₂CH
OH
'H
relationship:
relationship:](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F927ccd5f-a2a8-46df-9933-bf1a0a6d56eb%2Fc61364ef-547f-4534-8c55-bb3b1c510a23%2F48mtowj_processed.jpeg&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
R/S nomenclature help to find out the stereochemical relationships of the stereoisomers.
After assigning the configuration to the chiral centers if both has same configuration then these are identical or same.
After assigning the configuration to the chiral centers if both has reverse configuration then these are enantiomers.
After assigning the configuration to the chiral centers if only one center is inverted the it is known as diastereomers.
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