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Glucose reacts with acetic anhydride to form
- a)monoacetate
- b)tetra-acetate
- c)penta-acetate
- d)hexa-acetate
Correct answer is option 'C'. Can you explain this answer?
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Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-aceta...
Formation of Penta-Acetate from Glucose and Acetic Anhydride
Glucose is a monosaccharide, which is a simple sugar. Acetic anhydride is a colorless liquid that is used as a solvent and reagent in organic chemistry. When glucose reacts with acetic anhydride, it forms a penta-acetate. The reaction is shown below:
Glucose + 5 Acetic Anhydride → Penta-Acetate + 5 Acetic Acid
The penta-acetate is a crystalline solid that is soluble in organic solvents. It is used in the synthesis of various organic compounds.
Mechanism of Reaction
The reaction between glucose and acetic anhydride proceeds via a nucleophilic substitution mechanism. The steps involved in the mechanism are as follows:
Step 1: Formation of Acetyl Glucose
In the first step, acetic anhydride reacts with glucose to form an acetyl glucose intermediate. This reaction is catalyzed by acid.
Glucose + Acetic Anhydride + Acid → Acetyl Glucose + Acetic Acid
Step 2: Formation of Di-Acetyl Glucose
In the second step, another molecule of acetic anhydride reacts with the acetyl glucose intermediate to form a di-acetyl glucose intermediate.
Acetyl Glucose + Acetic Anhydride → Di-Acetyl Glucose + Acetic Acid
Step 3: Formation of Tri-Acetyl Glucose
In the third step, another molecule of acetic anhydride reacts with the di-acetyl glucose intermediate to form a tri-acetyl glucose intermediate.
Di-Acetyl Glucose + Acetic Anhydride → Tri-Acetyl Glucose + Acetic Acid
Step 4: Formation of Tetra-Acetyl Glucose
In the fourth step, another molecule of acetic anhydride reacts with the tri-acetyl glucose intermediate to form a tetra-acetyl glucose intermediate.
Tri-Acetyl Glucose + Acetic Anhydride → Tetra-Acetyl Glucose + Acetic Acid
Step 5: Formation of Penta-Acetyl Glucose
In the final step, another molecule of acetic anhydride reacts with the tetra-acetyl glucose intermediate to form a penta-acetyl glucose intermediate.
Tetra-Acetyl Glucose + Acetic Anhydride → Penta-Acetyl Glucose + Acetic Acid
Thus, the reaction between glucose and acetic anhydride proceeds through a series of steps to form a penta-acetate.
Glucose is a monosaccharide, which is a simple sugar. Acetic anhydride is a colorless liquid that is used as a solvent and reagent in organic chemistry. When glucose reacts with acetic anhydride, it forms a penta-acetate. The reaction is shown below:
Glucose + 5 Acetic Anhydride → Penta-Acetate + 5 Acetic Acid
The penta-acetate is a crystalline solid that is soluble in organic solvents. It is used in the synthesis of various organic compounds.
Mechanism of Reaction
The reaction between glucose and acetic anhydride proceeds via a nucleophilic substitution mechanism. The steps involved in the mechanism are as follows:
Step 1: Formation of Acetyl Glucose
In the first step, acetic anhydride reacts with glucose to form an acetyl glucose intermediate. This reaction is catalyzed by acid.
Glucose + Acetic Anhydride + Acid → Acetyl Glucose + Acetic Acid
Step 2: Formation of Di-Acetyl Glucose
In the second step, another molecule of acetic anhydride reacts with the acetyl glucose intermediate to form a di-acetyl glucose intermediate.
Acetyl Glucose + Acetic Anhydride → Di-Acetyl Glucose + Acetic Acid
Step 3: Formation of Tri-Acetyl Glucose
In the third step, another molecule of acetic anhydride reacts with the di-acetyl glucose intermediate to form a tri-acetyl glucose intermediate.
Di-Acetyl Glucose + Acetic Anhydride → Tri-Acetyl Glucose + Acetic Acid
Step 4: Formation of Tetra-Acetyl Glucose
In the fourth step, another molecule of acetic anhydride reacts with the tri-acetyl glucose intermediate to form a tetra-acetyl glucose intermediate.
Tri-Acetyl Glucose + Acetic Anhydride → Tetra-Acetyl Glucose + Acetic Acid
Step 5: Formation of Penta-Acetyl Glucose
In the final step, another molecule of acetic anhydride reacts with the tetra-acetyl glucose intermediate to form a penta-acetyl glucose intermediate.
Tetra-Acetyl Glucose + Acetic Anhydride → Penta-Acetyl Glucose + Acetic Acid
Thus, the reaction between glucose and acetic anhydride proceeds through a series of steps to form a penta-acetate.
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Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer?
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Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer?.
Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer? for JEE 2025 is part of JEE preparation. The Question and answers have been prepared according to the JEE exam syllabus. Information about Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer? covers all topics & solutions for JEE 2025 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Glucose reacts with acetic anhydride to forma)monoacetateb)tetra-acetatec)penta-acetated)hexa-acetateCorrect answer is option 'C'. Can you explain this answer?.
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