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Question
How many of above reactions are correct?
How many of above reactions are correct?
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Solution
1. The protection of 
then desulphurisation with (Raney Ni+H2).
2. The protection of (-CHO) group by 
and then desulphurisation with (Raney Ni+H2).
3. It is an example of Baeyer - Villiger oxidation, in which the migrating power of phenyl ring is greater than nitrophenyl group.
4. It is also an example of Baeyer-Villiger oxidation in which the migrating power of p-tolyl group is more than phenyl group.
So the correct answers is 4.
then desulphurisation with (Raney Ni+H2).2. The protection of (-CHO) group by
and then desulphurisation with (Raney Ni+H2).3. It is an example of Baeyer - Villiger oxidation, in which the migrating power of phenyl ring is greater than nitrophenyl group.
4. It is also an example of Baeyer-Villiger oxidation in which the migrating power of p-tolyl group is more than phenyl group.
So the correct answers is 4.
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