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A pair of diastereomers that differ only...

A pair of diastereomers that differ only in the configuration about a single carbon atom are called

A

Anomers

B

Epimers

C

Conformers

D

Enantiomers

Text Solution

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The correct Answer is:
To solve the question regarding the pair of diastereomers that differ only in the configuration about a single carbon atom, we can follow these steps: ### Step-by-Step Solution: 1. **Understand the Terms**: - **Diastereomers**: These are stereoisomers that are not mirror images of each other. They have different configurations at one or more stereocenters. - **Epimers**: A specific type of diastereomer that differs in configuration at only one specific stereocenter. - **Anomers**: A subtype of epimers that differ at the anomeric carbon (the carbon that becomes a new chiral center during the formation of a cyclic sugar). - **Conformers**: Different spatial arrangements of a molecule that can be interconverted by rotation around single bonds. - **Enantiomers**: Stereoisomers that are mirror images of each other. 2. **Identify the Correct Option**: - The question asks for diastereomers that differ only at one carbon atom. This definition matches with the term **epimers**. 3. **Provide an Example**: - A common example of epimers is glucose and mannose. They differ in configuration at the second carbon atom (C2). 4. **Conclude the Answer**: - Therefore, the answer to the question is **epimers**. ### Final Answer: A pair of diastereomers that differ only in the configuration about a single carbon atom are called **epimers**.
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