What is the missing reagent in the following synthesis?
Understand the Problem
The question is asking to identify the missing reagent required for a chemical synthesis reaction. The given starting material is an organomagnesium compound (Grignard reagent) and the final product is an alcohol. The missing reagent is a key component that facilitates the transformation from the Grignard reagent to the alcohol.
Answer
Acetaldehyde (ethanal)
The final answer is acetaldehyde (ethanal).
Answer for screen readers
The final answer is acetaldehyde (ethanal).
More Information
Acetaldehyde reacts with the Grignard reagent to form a secondary alcohol (2-butanol) after acid workup.
Tips
A common mistake is choosing a formaldehyde, which would yield a primary alcohol or choosing an acetone leading to a different tertiary alcohol.
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