Question

The reation of `RCONH_(2)` with a mixture of `Br_(2)` and aqueous `KOH` gives `RNH_(2)` as the main product The intermediate (s) involved in this reation is (are) .
A. `RCONHBr`
B. `RCONbarNBrK^(+)`
C. `R-N=C=O`
D. all of these

Answer 1

Correct Answer - D
A nitrene is a neutral molecule with an electron-deficient `N` It is structuraly similar to a carbene Nitrenes rearrange rapidly to isocyanates which react further as shown Note that the amine has one less `C` than the amide and its precursor carboxylic acid

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