18.35 Draw the most likely mechanism for each of the following transformations: Br он Br 1) NaOH, 350°C 2) H,O Br2 FeBr, (a) (b) O,N. O2N. 1) NANH, 2) H,0* (c) NH2

Q: 3. Propose a plausible mechanism for the following transformation: س & H₂N CF3 N H CN CF₂ OH

A: We have to draw the mechanism for the given transformation.

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Q: CH3 ... HNO, H2SO4 CH2NO2 CH3 CH3 NO2 `NO2 NO2 IV

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Reactions at the Alpha Carbon Atom

The position next to the ketone or aldehyde functional group is termed as alpha position and the reaction which occurs at alpha position is called alpha substitution reaction. In an alpha substitution reaction, the alpha proton atom is substituted by an electrophile by the formation of an enol intermediate or enolate ion intermediate. Most of the carbonyl compounds go through an alpha substitution reaction.