Consider the following reaction Glucose `overset("Reagent")rarr"Mannose"` The above reaction is known as

Options

A. Anomerisation
B. Recemisation
C. Epimerisation
D. Conversion

Answer

To solve the question regarding the conversion of glucose to mannose, we can follow these steps:

### Step 1: Identify the Reactants and Products
- The reactant is glucose, and the product is mannose.

### Step 2: Understand the Structural Differences
- Glucose and mannose are both aldoses and have the same molecular formula (C6H12O6).
- The key difference between them lies in the configuration around the second carbon atom (C2).

### Step 3: Analyze the Configuration
- In glucose, the hydroxyl group (OH) on C2 is on the right side in the Fischer projection.
- In mannose, the hydroxyl group (OH) on C2 is on the left side in the Fischer projection.
- This difference in configuration at the C2 carbon indicates that glucose and mannose are epimers.

### Step 4: Define the Type of Reaction
- The conversion of one epimer to another (in this case, glucose to mannose) is known as epimerization.
- Epimerization is a type of stereoisomerization where one stereoisomer (epimer) is converted to another.

### Conclusion
- Therefore, the reaction of glucose converting to mannose in the presence of a suitable reagent is known as **epimerization**.

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