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Q. $RCONH _{2}$ is converted into $RNH _{2}$ by means of Hofmann's bromamide degradation.
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In this reaction, $RCONHBr $ is formed from which this reaction has derived its name. Electron donating group at phenyl activates the reaction. Hofmann's degradation reaction is an intramolecular reaction. $(2006,3 \times 4 M =12 M )$
Which is the rate determining step in Hofmann's bromamide degradation?

IIT JEEIIT JEE 2006Aldehydes Ketones and Carboxylic Acids

Solution:

Rearrangement of (iii) to (iv) is the rate determining step

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