Question

What is the product in the given reaction?

Answer 1

The given reaction is $S{N}_2$ reaction. Reactivity towards $S{N}_2$ reaction depends upon the steric hindrance.

There are two nucleophilic sites (1) & (2)

The preferred site will be (1) as there is no steric hindrance. At side (2), it is the bridgehead position so there is a lot of steric hindrances and $Nu$ cannot attack there.

$N_3^{⊝}$ attacks from above the plane as the leaving group $N_3^{⊝}$ is below the plane.