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A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?
Correct answer is '7'. Can you explain this answer?
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A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms ...
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Understanding Hydroxy Acids and Lactones
The molecular formula C5H10O3 indicates a hydroxy acid that can form cyclic esters, known as lactones, upon heating.
Types of Lactones
When considering lactones, we focus on five and six-membered rings.
Five-Membered Lactones (Gamma-Lactones)
- Structure: Five-membered lactones are formed when a hydroxy acid reacts with its carboxyl group.
- Isomers: For C5H10O3, two distinct five-membered lactones can be formed:
- 1. Gamma-butyrolactone (from a 4-carbon chain)
- 2. Delta-valerolactone (from a 5-carbon chain)
Six-Membered Lactones (Delta-Lactones)
- Structure: Six-membered lactones involve a hydroxy acid with a longer chain.
- Isomers: Three different six-membered lactones can be derived from the same hydroxy acid:
- 3. Caprolactone (from a 5-carbon chain)
- 4. 1-Hydroxycaproic acid lactone
- 5. 2-Hydroxycaproic acid lactone
- 6. 3-Hydroxycaproic acid lactone
Other Isomeric Forms
- Consideration of Stereoisomers: Depending on the stereochemistry of the hydroxy group and any possible chiral centers, additional isomers may arise.
- Total Count: By combining the five and six-membered lactones and considering stereochemistry, we can derive a total of 7 unique isomers.
Conclusion
In summary, the hydroxy acid C5H10O3 can result in 7 different lactone isomers through the formation of five and six-membered cyclic structures, alongside possible stereoisomer variations.
The molecular formula C5H10O3 indicates a hydroxy acid that can form cyclic esters, known as lactones, upon heating.
Types of Lactones
When considering lactones, we focus on five and six-membered rings.
Five-Membered Lactones (Gamma-Lactones)
- Structure: Five-membered lactones are formed when a hydroxy acid reacts with its carboxyl group.
- Isomers: For C5H10O3, two distinct five-membered lactones can be formed:
- 1. Gamma-butyrolactone (from a 4-carbon chain)
- 2. Delta-valerolactone (from a 5-carbon chain)
Six-Membered Lactones (Delta-Lactones)
- Structure: Six-membered lactones involve a hydroxy acid with a longer chain.
- Isomers: Three different six-membered lactones can be derived from the same hydroxy acid:
- 3. Caprolactone (from a 5-carbon chain)
- 4. 1-Hydroxycaproic acid lactone
- 5. 2-Hydroxycaproic acid lactone
- 6. 3-Hydroxycaproic acid lactone
Other Isomeric Forms
- Consideration of Stereoisomers: Depending on the stereochemistry of the hydroxy group and any possible chiral centers, additional isomers may arise.
- Total Count: By combining the five and six-membered lactones and considering stereochemistry, we can derive a total of 7 unique isomers.
Conclusion
In summary, the hydroxy acid C5H10O3 can result in 7 different lactone isomers through the formation of five and six-membered cyclic structures, alongside possible stereoisomer variations.
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A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer?
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A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer?.
A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer? for Class 12 2024 is part of Class 12 preparation. The Question and answers have been prepared according to the Class 12 exam syllabus. Information about A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer? covers all topics & solutions for Class 12 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for A hydroxy acid has molecular formula C5H10O3 and it iactonises (forms cyclic esters) on heating. If only five and six membered lactones are considered, how many different isomers of lactones are possible?Correct answer is '7'. Can you explain this answer?.
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