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underset ((X)) underset ("Optically acti...

`underset ((X)) underset ("Optically active") (C_5 CH_(13)N) underset (N_2)overset(NaNO_2//HCl) rarr (Y)underset (+" Other product" ) ("Tertiary alcohol")`
Find (X ) and (Y ) . Is (Y ) optically active ? Write the intermediate steps .

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(a) Since compound (X) on treatment with `NaNO_(2) // HCl` evolves `N_(2)` gas, it must be a primary amine. Further, since it is optically active, it must contain a chiral carbon. The `-NH_(2)` cannot be directly attached to a chiral carbon because such amines read- ily undergo, racemization due to nitrogen inversion. Therefore, the structure of (X) is :
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