Question

In which of the following reactions, the intermediate species acyl nitrene `(R-overset(O)overset(||)(C)-ddot(N: ))` and intermediate compound alkyl isocyanate `(R - N = C = O)` are involved ?
A.
B.
C.
D.

Answer 1

Correct Answer - A::B::C::D
(a) It is Hofmann bromamide reaction.
(b) It is Lossen rearrangement reaction.
(c) It is Curtius rearrangement reaction.
(d) It is Schmidt rearrangement reaction. All these reactions proceed by inermediate species and the intermediate compound involved is `(R - N = C = O)`.