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  4. The heating of oxime of acetone in presence of conc. H2SO4 to form N-methyl ethanamide is called

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Q. The heating of oxime of acetone in presence of conc. $H_{2}SO_{4}$ to form $N$-methyl ethanamide is called

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Solution:

The heating of oxime of acetone in presence of conc. $H_{2}SO_{4}$ to form $N$-methyl ethanamide is called Beckmann rearrangement. In Beckmann rearrangement, $R$-migrates from carbon to nitrogen of an oxime to form $N$-substituted amide.
Solution
Loss of $H_{2}O$ occurs with simultaneous migration of the trans-$R'$.
Solution