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underset((A))(EtCOOMe) underset((iii)ove...

`underset((A))(EtCOOMe) underset((iii)overset("Ө")OH" "(iv) H_(3)O^(o+))overset((i)NH_(2)NH_(2)" "(ii) HNO_(2))to(B)` The product (B) is: `MeNH_(2)` , `EtNH_(2)` , `MeCONH_(2)` , `EtCONHMe`

A

`MeNH_(2)`

B

`EtNH_(2)`

C

`MeCONH_(2)`

D

EtCONHMe

Text Solution

Verified by Experts

The correct Answer is:
B
Lossen rearrangement: The o-acyl derivatives of hydroxamic acids give isocyanates when treated with bases or sometimes even just on heating.
`R-overset(O)overset(||)C-underset(H)underset(|)N-O-O-overset(O)overset(||)C-R. overset(OH^(-))toR -N=C=O overset(H_(2)O)toRNH_(2)`
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