In which of the following reactions, the intermediate species acyl nitrene ( R - overset underset||OC - ddotN :) and intermediate compound alkyl isocyanate (R − N = C = O) are involved?

Question

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

Tardigrade Admin · Accepted Answer

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 intermediate

⎝ ⎛ R - O ∣∣ C - \ddot{N} : ⎠ ⎞

species and the intermediate
compound involved is

(R - N = C = O)

Q. In which of the following reactions, the intermediate species acyl nitrene ⎝⎛​R−C∣∣O​−N¨:⎠⎞​ and intermediate compound alkyl isocyanate (R−N=C=O) are involved?

Q. In which of the following reactions, the intermediate species acyl nitrene $⎝ ⎛ R - C ∣∣ O - \ddot{N} : ⎠ ⎞$ and intermediate compound alkyl isocyanate $(R - N = C = O)$ are involved?