A) Backmann rearrangement
B) Curtius rearrangement
C) Lossen rearrangement
D) Hofmann rearrangement
Correct Answer: A
Solution :
\[\overset{\overset{\,\,\,\,\,\,\,\,\,\,\,\,\,C{{H}_{3}}}{\mathop{\,\,\,\,\,\,\,\,\,\,\,|}}\,}{\mathop{{{C}_{6}}{{H}_{5}}-C=O}}\,+{{H}_{2}}NOH\xrightarrow[-{{H}_{2}}O]{}\underset{\underset{\text{methyl phenyl ketoxime}}{\mathop{\text{Acetophenone oxime or}}}\,}{\mathop{\overset{\overset{\,\,\,\,\,\,C{{H}_{3}}}{\mathop{\,|}}\,}{\mathop{{{C}_{6}}{{H}_{5}}-C=NOH}}\,}}\,\]\[\underset{\begin{smallmatrix} \,\,\,\text{Backmann} \\ \text{rearrangement} \end{smallmatrix}}{\mathop{\xrightarrow{{{H}_{2}}S{{O}_{4}}}}}\,\underset{\text{Acetanilide}}{\mathop{{{C}_{6}}{{H}_{5}}NHCOC{{H}_{3}}}}\,\]
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