Which of the following cyclic amines has the | vedclass

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Question

(C) The inversion of nitrogen in cyclic amines involves a transition state where the nitrogen atom becomes $sp^2$ hybridized. In $N$-substituted aziri

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$N$-$t$-butylaziridine

Vedclass · Answer

(C) The inversion of nitrogen in cyclic amines involves a transition state where the nitrogen atom becomes $sp^2$ hybridized. In $N$-substituted aziridines,the steric bulk of the substituent on the nitrogen atom affects the energy barrier for inversion. Bulky groups like the $t$-butyl group increase the steric strain in the ground state,which is relieved in the transition state,thereby lowering the activation energy $(\Delta G^{o\ddagger})$ for the inversion process. Therefore,$N$-$t$-butylaziridine has the lowest $\Delta G^{o}$ for inversion among the given options.

Which of the following cyclic amines has the lowest $\Delta G^{o}$ for inversion?

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