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Hoffmann Rearrangement
The reaction in which the conversion of amides to amine with one carbon atom less than the starting material in the presence of Br2 and KOH or alkaline Hypohalite is called Hoffmann rearrangement. This rearrangement was given by Agust Wilhem. Reaction : Mechanism of the Hofmann Rearrangement: Step 1: Deprotonation of amide by Base…
Cannizzaro Reaction
Those carbonyl compound which donot contain α-H react in the presence of conc. base gives alcohol ( reduced product) and acidic salt (oxidized Product). Reaction of cannizzaro: Cannizzaro Reaction Mechanism: Step(01) formation of dianion: In this reaction , we use typical base OH which react on less hindered product because our preference is to make…
Rearrangments
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Beckmann Rearrangement
“The acid-induced reaction that converts oxime to amide is called Beckmann rearrangement” In the Beckmann rearrangement, migration of the group does not depend upon migration aptitude but depends upon the orientation of the group related to a hydroxyl group. In…