The correct order of basic strength for the g | vedclass

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Question

(B) In the given structure ($1$,$8$-diazabicyclo[$5.4$.$0$]undec$-7-$ene derivative): $(x)$ is a primary amine group $(-NH_2)$,which is less basic due

Vedclass · Accepted Answer

$y > z > x$

Vedclass · Answer

(B) In the given structure ($1$,$8$-diazabicyclo[$5.4$.$0$]undec$-7-$ene derivative): $(x)$ is a primary amine group $(-NH_2)$,which is less basic due to the electron-withdrawing effect of the ring. $(y)$ is a tertiary amine nitrogen at the bridgehead position. It is highly basic because the lone pair is available and the resulting conjugate acid is stabilized by the bicyclic structure (proton sponge effect). $(z)$ is a secondary amine nitrogen in the ring. Comparing the basicity: $(y)$ is the most basic due to the bridgehead nitrogen effect. $(z)$ is more basic than $(x)$ because it is a secondary amine compared to the primary amine $(x)$. Thus,the order of basic strength is $y > z > x$.

The correct order of basic strength for the given nitrogen atoms $(x)$,$(y)$,and $(z)$ is $-$

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