MHT CET · Chemistry · Amines
Which of the following reagents is used in Hoffmann elimination reaction of amines
- A \(\mathrm{NaNO}_{2}+\mathrm{HCl}\)
- B \(\mathrm{CH}_{3} \mathrm{COCl}\)
- C \(\mathrm{Ag}_{2} \mathrm{O} / \mathrm{H}_{2} \mathrm{O}, \Delta\)
- D \(\mathrm{CHCl}_{3}+\mathrm{KOH}\)
Answer & Solution
Correct Answer
(C) \(\mathrm{Ag}_{2} \mathrm{O} / \mathrm{H}_{2} \mathrm{O}, \Delta\)
Step-by-step Solution
Detailed explanation
When tetraalkylammonium halide is heated with moist silver oxide, it gives quaternary ammonium hydroxide which on strong heating undergoes \(\beta\)-elimination to give alkenes; the reaction is called Hoffmann elimination. In this reaction the major product is least substituted alkene. e.g.
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