What is the main product when an aldehyde reacts with a Grignard reagent?

Practice Questions

Q1
What is the main product when an aldehyde reacts with a Grignard reagent?
  1. Alcohol
  2. Ketone
  3. Carboxylic acid
  4. Alkane

Questions & Step-by-Step Solutions

What is the main product when an aldehyde reacts with a Grignard reagent?
  • Step 1: Identify the aldehyde you are starting with. Aldehydes have the structure RCHO, where R is a hydrocarbon group.
  • Step 2: Identify the Grignard reagent, which has the general formula RMgX, where R is a hydrocarbon group and X is a halogen.
  • Step 3: When the aldehyde reacts with the Grignard reagent, the Grignard reagent attacks the carbon atom of the carbonyl group (C=O) in the aldehyde.
  • Step 4: This attack forms a new carbon-carbon bond, resulting in a compound called an alkoxide intermediate.
  • Step 5: The alkoxide intermediate is then treated with water (hydrolysis), which converts it into a primary alcohol.
  • Step 6: The final product is a primary alcohol, which has the structure RCH2OH.
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