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Question
Which of the following alkenes on ozonolysis give a mixture of ketones only?
Which of the following alkenes on ozonolysis give a mixture of ketones only?
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Solution
The correct option is D
Only tetrasubstituted alkenes can form ‘only’ ketones upon ozonolysis
Ozonolysis reactions for the given options
A)
B)
These two molecules are terminal alkene which on ozonolysis yields aldehydes.
Thus, on ozonolysis of given molecules, a mixture of only aldehydes are obtained as product.
C)
D)
In these two molecules double bond is present between secondary carbons and ozonolysis of secondary carbons yields ketones.
Thus, on ozonolysis of given molecules, a mixture of only ketones is obtained as a product.
Hence, options (C) and (D) are correct.
Only tetrasubstituted alkenes can form ‘only’ ketones upon ozonolysis
Ozonolysis reactions for the given options
A)
B)
These two molecules are terminal alkene which on ozonolysis yields aldehydes.
Thus, on ozonolysis of given molecules, a mixture of only aldehydes are obtained as product.
C)
D)
In these two molecules double bond is present between secondary carbons and ozonolysis of secondary carbons yields ketones.
Thus, on ozonolysis of given molecules, a mixture of only ketones is obtained as a product.
Hence, options (C) and (D) are correct.
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