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Hofmann Elimination of Quaternary hydroxides -
This E2 elimination gives the less substituted alkene ( Hofmann product ) rather than the more substituted alkene ( Saytzeff product ). The alkyl group having maximum hydrogen gives the major alkene if R groups attached to nitrogen are different.
- wherein
s - Butyltrimethylammonium hydroxide 1 - Butene
The reaction mechanism
Option 1)
Option 2)
Option 3)
Option 4)