Question

When stannous chloride and hydrochloric acid are used as the reducing agents nitrocompound are converted into .
A. primary amines
B. N-alky1 hydroxylamine
C. oxime
D. A mixture of (2) and (3)

Answer 1

Correct Answer - D
A mixture of N-alkylhydroxylamine and oxime is obtained
`RCH_(2)NO_(2)overset(SnCI_(2)//HCI)rarrRCH_(2)NHOH+RCh=NOH`
Nitro compounds are converted into an N-alklhydroxylamine when the reduction with metal is carried out in neutral solution e.g with zinc dust and ammonium chloride solution
`RNO_(2)overset(Zn//NH_ (4)C)rarrRNHOH+H_(2)O`
Since hydroxylamine `(NH_(2)OH)` can give rise to two types of derivatives `RNHOH` and `NH_(2)OR` it is essential to distinguish one form from the other A common method is to name the former as the N-alkylhydroxyylamine and the latter the `O` alkylhydroxylamine the capital letters `N` and `O`, respectively indicating where the alkyl group is boded in the molecule .