1.

In a set of reactions, propionic acid yielded a compound D underset((A))(CH_(3)CH_(2)COOH) overset(SOCl_(2))(rarr) B overset(NH_(3))(rarr) C overset(Br_(2)//KOH)(rarr) D The structure of D would be

Answer»

`CH_(3)CH_(2)NH_(2)`<BR>`CH_(3)CH_(2)CH_(2)NH_(2)`
`CH_(3)CH_(2)CONH_(2)`
`CH(3)CH_(2)NHCH_(3)`.

Solution :`underset((A))(CH_(3)CH_(2)COOH) OVERSET(SOCl_(2))(rarr) underset((B))(CH_(3)CH_(2)COCl) underset(-NH_(4)Cl)overset(NH_(3)" excess")(rarr) underset((C))(CH_(3)CH_(2)CONH_(2)) overset(Br_(2)//KOH)(rarr) underset((D))(CH_(3)CH_(2)NH_(2))`


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