What is the major product of the dehydration of 2-butanol?

Practice Questions

Q1
What is the major product of the dehydration of 2-butanol?
  1. Butene
  2. Butyne
  3. Butanol
  4. Butanal

Questions & Step-by-Step Solutions

What is the major product of the dehydration of 2-butanol?
  • Step 1: Understand that dehydration means removing water (H2O) from a molecule.
  • Step 2: Identify the structure of 2-butanol, which has the formula C4H10O.
  • Step 3: Recognize that during dehydration, 2-butanol will lose a hydroxyl group (OH) and a hydrogen atom (H) from adjacent carbon atoms.
  • Step 4: Determine the possible products of this elimination reaction, which will form a double bond between the carbon atoms.
  • Step 5: Identify the major product, which is butene. There are two isomers of butene: 1-butene and 2-butene.
  • Step 6: Note that 2-butene is typically the major product due to stability and sterics.
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