JEE MainChemistryAldehydes Ketones and Carboxylic AcidsMCQ+4 / −1
When
undergoes intramolecular aldol condensation, the major product formed is :
undergoes intramolecular aldol condensation, the major product formed is :- A

- B

- C

- D

View written solutionFree
Correct answer: B
The question statement appears to be incomplete: the substrate structure and all four option structures are missing.
To determine the product of an intramolecular aldol condensation, I need:
- The given carbonyl compound/substrate
- The structures of options A, B, C, and D
Without the reactant structure, the product cannot be derived uniquely, because intramolecular aldol condensation depends on:
- the number of carbon atoms between carbonyl groups,
- whether the compound is a dialdehyde/diketone/keto-aldehyde,
- which -hydrogen is abstracted,
- whether a 5-membered or 6-membered ring is formed,
- and the dehydration pattern of the aldol product.
What is normally done
For an intramolecular aldol condensation:
- Identify the enolate-forming -carbon.
- Check possible cyclizations.
- Prefer formation of 5-membered or 6-membered rings.
- Form the -hydroxy carbonyl intermediate.
- Dehydrate to give the -unsaturated carbonyl compound.
But here
Since the actual compound and options are absent, I cannot genuinely verify whether option B is correct.
Please resend the question with the reactant and option structures visible, and I will solve it step-by-step properly.
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