1.

Which of the following reagents can be used to convert primary amides into primary amines containing the same number of carbon atoms?

Answer»

`Br_(2) + NaOH`
`LiAlH_(6)`
both of these
none of these

Solution :Reduction with `LiAlH_(4)` converts `CONH_(2)` of amides to `CH_(2)NH_(2)` giving `1^(@)` amines with same number of carbon atoms as the amide. In contrast, `Br_(2)+NaOH` will BRING about Hofmann bromamide reaction giving `1^(@)` amines with one carbon atom less than the parent amide.
For example,
`RCONH_(2)overset(LiAlH_(4))rarr RCH_(2)NH_(2)`
`RCONH_(2)overset(Br_(2)+NaOH)rarr RNH_(2)`


Discussion

No Comment Found

Related InterviewSolutions