Draw the condensed structural formula for each of the following amides:
c. 3-methylbutyramide

Verified step by step guidance

1. Identify the parent carboxylic acid: The name '3-methylbutyramide' suggests that the parent carboxylic acid is '3-methylbutanoic acid'.
2. Determine the structure of 3-methylbutanoic acid: The 'butanoic acid' part indicates a four-carbon chain with a carboxylic acid group (COOH) at the end. The '3-methyl' indicates a methyl group (CH₃) attached to the third carbon of the chain.
3. Convert the carboxylic acid to an amide: Replace the hydroxyl group (OH) of the carboxylic acid with an amine group (NH₂) to form the amide.
4. Draw the condensed structural formula: Start with the carbon chain, add the methyl group at the appropriate position, and replace the carboxylic acid group with the amide group.
5. Write the final condensed structural formula: Combine all parts into a single condensed formula, ensuring the correct placement of the methyl group and the amide group.

Key Concepts

Amides

Amides are organic compounds derived from carboxylic acids where the hydroxyl group is replaced by an amine or ammonia. They have the general structure R-CO-NR'R'', where R represents a hydrocarbon chain, and NR'R'' indicates the nitrogen atom bonded to one or more alkyl or aryl groups. Amides are important in various biological processes and are commonly found in proteins.

Condensed Structural Formula

A condensed structural formula is a way of representing a chemical structure that shows the arrangement of atoms in a molecule without depicting all the bonds explicitly. It simplifies the representation by grouping atoms together, often indicating the connectivity of atoms in a linear format. This format is particularly useful for larger molecules, as it provides a clear overview of the structure while saving space.

3-Methylbutyramide

3-Methylbutyramide is an amide derived from 3-methylbutanoic acid, where a methyl group is attached to the third carbon of the butyric acid chain. Its condensed structural formula can be represented as CH3-CH(CH3)-CH2-CO-NH2, indicating the presence of the amide functional group (-CO-NH2) at the end of the carbon chain. Understanding its structure is essential for predicting its chemical behavior and interactions.