Question

In the mechanism of Hoffmann reaction, which intermediate rearranges to alkyl isocyanate ?
A. Bromamide
B. Methene
C. Nitrene
D. Amide

Answer 1

Correct Answer - C
`underset(1^(@)"Amide")(R - overset(O)overset(||)(C) - NH_(2)) underset(KOH)overset(Br_(2))rarr underset("Acetylinitrene")(R - overset(O)overset(||)(C) - overset(..)(N): ) overset("Rearranges")rarr underset("Alkyl isocyanate")(R - N = C = O)`