Textbook Question
Write a balanced chemical equation using condensed structural formulas for the saponification (base hydrolysis) of
a. methyl propionate
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22. Organic Chemistry
Ester Reactions: Saponification
Multiple Choice
Name alcohol formed when the following ester undergoes a saponification reaction.
A
4-methyl-4-butanol
B
2-methyl-4-butanol
C
2-methyl-1-butanol
D
2-methylhexanoate
Verified step by step guidance1
Identify the ester structure given in the image. The ester consists of an alkyl group attached to the oxygen and an acyl group (carbonyl part) attached to the carbonyl carbon.
Recall that saponification is the base-catalyzed hydrolysis of an ester, which breaks the ester bond to form a carboxylate salt and an alcohol.
Determine which part of the ester will become the alcohol after saponification. The alkyl group attached to the oxygen in the ester becomes the alcohol.
Analyze the alkyl group attached to the oxygen in the ester structure. Count the carbon atoms and identify any substituents to name the alcohol correctly.
Use IUPAC nomenclature rules to name the alcohol formed from the alkyl group. This involves numbering the carbon chain starting from the carbon attached to the hydroxyl group (-OH) and identifying any methyl or other substituents.
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