Open Question
Give systematic names for the following structures and structures for the names:
a. 3-Methylpentanamide
16. Carboxylic Acids and Their Derivatives
Naming Amides
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Assign a common name to the following.
A
N-pentyl-N-tert-butylacetamide
B
N-tert-butyl-N-pentylethanamide
C
N-tert-butyl-N-pentylacetamide
D
N-hexyl-N-tert-butylethanamide
Verified step by step guidance1
Identify the functional group present in the structure. The image shows an amide group, characterized by a carbonyl group (C=O) directly bonded to a nitrogen atom (N).
Examine the substituents attached to the nitrogen atom. In this structure, there are two alkyl groups: a tert-butyl group and a pentyl group.
Determine the longest carbon chain attached to the nitrogen. The pentyl group is a five-carbon chain, which is longer than the tert-butyl group.
Assign the common name based on the substituents. The naming convention for amides involves listing the substituents on the nitrogen in alphabetical order, followed by the base name of the amide.
Combine the substituents and the base name to form the common name. The correct common name for this structure is N-tert-butyl-N-pentylacetamide, as the tert-butyl group is listed before the pentyl group alphabetically.
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