Question

Alpha D glucose and beta D glucose are examples of

• A. Enantiomers
• B. Tautomers
• C. Anomers
• D. Epimers

Answer 1

The correct option is C

Anomers

• Enantiomers: Enantiomers are pairs of compounds with exactly the same connectivity but opposite three-dimensional shapes. Enantiomers are mirror images of each other and are non-superimposable.

Example:

• Tautomers: Tautomers are structural isomers of chemical compounds that are interconvertible. The chemical reaction interconverting these two isomers is called tautomerization.

Example:

• Anomers: Anomers are the stereoisomers that differ in only the anomeric carbon, the carbon that bears the aldehyde or ketone functional group.

Example:

• Epimers: Epimers are the stereoisomers that differ in configuration at any single asymmetric carbon atom.

• Alpha D glucose and beta D glucose differ are the structural isomers that differ in only at the carbon that bears the aldehyde functional group. Hence, these are anomers.
• So, the correct option is (C).