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Ch.17 Carboxylic Acids and Their Derivatives
McMurry - Fundamentals of GOB 8th Edition
McMurry8th EditionFundamentals of GOBISBN: 9780134015187Not the one you use?Change textbook
Chapter 17, Problem 20b

Draw structures of the amides that can be made from the following reactants:
b. Chemical reaction diagram showing an amine and a carboxylic acid reacting to form an amide, with a question mark indicating the product.

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1
Identify the reactants involved in the formation of the amide. Amides are typically formed through a reaction between a carboxylic acid (or its derivative) and an amine. Examine the provided image to determine the functional groups present in the reactants.
Determine the functional group transformation. In the formation of an amide, the hydroxyl group (-OH) of the carboxylic acid is replaced by the amine group (-NH2 or a substituted amine). This process often involves a condensation reaction, where water (H2O) is eliminated.
Draw the structure of the carboxylic acid reactant. Ensure that the carbonyl group (C=O) and hydroxyl group (-OH) are correctly represented.
Draw the structure of the amine reactant. If the amine is primary (R-NH2), secondary (R2-NH), or tertiary (R3-N), ensure the correct number of substituents (R groups) are attached to the nitrogen atom.
Combine the two structures to form the amide. Replace the hydroxyl group (-OH) of the carboxylic acid with the amine group, forming a bond between the carbonyl carbon and the nitrogen atom. Ensure the resulting structure reflects the correct connectivity and bonding.

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Key Concepts

Here are the essential concepts you must grasp in order to answer the question correctly.

Amides

Amides are organic compounds derived from carboxylic acids where the hydroxyl group (-OH) is replaced by an amine group (-NH2, -NHR, or -NR2). They are characterized by the functional group -C(=O)N-, which plays a crucial role in their chemical properties and reactivity. Amides can be formed through the reaction of carboxylic acids with amines, making them important in both synthetic and biological chemistry.
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Intro to Amides Example 1

Reactants in Organic Chemistry

In organic chemistry, reactants are the starting materials that undergo a chemical reaction to form products. Understanding the nature of the reactants, such as their functional groups and structural features, is essential for predicting the outcome of a reaction. In the context of amide formation, identifying the specific carboxylic acid and amine reactants is key to determining the structure of the resulting amide.
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Chemical Structure Drawing

Drawing chemical structures involves representing the arrangement of atoms and the bonds between them in a molecule. This skill is vital for visualizing and understanding the properties of compounds, including amides. Accurate structural representation helps in predicting reactivity, stability, and interactions with other molecules, which is essential for answering questions related to organic synthesis.
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