Open Question
Draw the condensed structural formula for each of the following:
c. butyl methyl ketone
15. Aldehydes and Ketones
Naming Ketones
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Give common name for following ketone.
A
sec-butyl ethyl ketone
B
sec-butyl propyl ketone
C
ethyl sec-butyl ketone
D
propyl sec-butyl ketone
Verified step by step guidance1
Identify the functional group in the structure. The image shows a ketone, which is characterized by a carbonyl group (C=O) bonded to two carbon atoms.
Determine the longest carbon chain that includes the carbonyl group. In this structure, the longest chain containing the carbonyl group has five carbon atoms.
Identify the substituents attached to the main carbon chain. In this case, there is an ethyl group (two carbon atoms) and a sec-butyl group (four carbon atoms) attached to the carbonyl carbon.
Assign the common name based on the substituents. The common naming convention for ketones involves naming the alkyl groups attached to the carbonyl carbon in alphabetical order followed by 'ketone'.
Combine the names of the substituents in alphabetical order: 'ethyl' comes before 'sec-butyl', so the common name is 'ethyl sec-butyl ketone'.
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