What is the main product of the reaction of 1-bromo-2-methylpropane with KOH in

Practice Questions

Q1
What is the main product of the reaction of 1-bromo-2-methylpropane with KOH in ethanol? (2020)
  1. 2-methylpropene
  2. 2-methylpropan-1-ol
  3. 1-bromo-2-methylpropane
  4. 2-bromo-2-methylpropane

Questions & Step-by-Step Solutions

What is the main product of the reaction of 1-bromo-2-methylpropane with KOH in ethanol? (2020)
  • Step 1: Identify the starting material, which is 1-bromo-2-methylpropane. This is a molecule with a bromine atom attached to a carbon chain.
  • Step 2: Recognize that KOH (potassium hydroxide) is a strong base that can promote elimination reactions.
  • Step 3: Understand that in the presence of KOH and ethanol, the bromine atom can be removed from 1-bromo-2-methylpropane.
  • Step 4: Realize that when the bromine is removed, a double bond forms between the carbon atoms, resulting in the formation of an alkene.
  • Step 5: Determine the structure of the product. The double bond will form between the second and third carbon atoms, leading to the product 2-methylpropene.
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