MolSynapsequestion bank
MolSynapse / Question bank / Organic Reaction Mechanisms IV: Elimination / Saytzeff vs Hofmann products
JEE Main levelOne or more correct optionsDifficulty 2 of 3o4188

Which statements are correct?

  1. AThe Saytzeff product is the more substituted and generally more stable alkene.
  2. B2-Bromobutane with alcoholic gives mainly but-1-ene.
  3. CA bulky base such as favours removal of the more accessible beta-hydrogen, increasing the Hofmann product.
  4. DHofmann elimination of quaternary ammonium hydroxides gives mainly the more substituted alkene.

Answer: A, C

Saytzeff alkenes are more stable (more hyperconjugation), so statement 1 is right. 2-Bromobutane with alcoholic KOH gives mainly but-2-ene, so statement 2 is wrong. Bulky bases attack the least hindered H, so statement 3 is right. Hofmann elimination gives mainly the less substituted alkene, so statement 4 is wrong.
Practice Organic Reaction Mechanisms IV: Elimination More on Saytzeff vs Hofmann products
Previous questionNext question

More questions on Saytzeff vs Hofmann products