MEDIUMMCQ SINGLEJEE Mains ChemistryOrganic ChemistryAldehydes and ketonesPreparation of Aldehydes & Ketones

Which of the following compound will yield 2,5- dimethylhexan-1,6-dial upon ozonolysis?

A.3, 6-dimethyl cyclohexene✓ Correct

B.3,4-dimethyl cyclohexene

C.4,6-dimethyl cyclohexene

D.3,5-dimethyl cyclohexene

Explanation

3,6-Dimethyl cyclohexene, will give 2,5- dimethylhexan-1, 6-dial. The double bond of the cyclohexene will break and the both the carbon atoms will convert into aldehyde group. The reaction is given below: 퐶퐻3 퐶퐻3 | | 퐶퐻푂−퐶−퐶퐻2 −퐶퐻2 −퐶−퐶퐻푂

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