Table of contents

1. A Review of General Chemistry5h 5m
2. Molecular Representations1h 14m
3. Acids and Bases2h 46m
4. Alkanes and Cycloalkanes4h 17m
5. Chirality3h 39m
6. Thermodynamics and Kinetics1h 22m
7. Substitution Reactions1h 48m
8. Elimination Reactions2h 30m
9. Alkenes and Alkynes2h 9m
10. Addition Reactions3h 19m
11. Radical Reactions1h 58m
12. Alcohols, Ethers, Epoxides and Thiols2h 42m
13. Alcohols and Carbonyl Compounds2h 17m
14. Synthetic Techniques1h 26m
15. Analytical Techniques:IR, NMR, Mass Spect7h 3m
16. Conjugated Systems6h 13m
17. Ultraviolet Spectroscopy51m
18. Aromaticity2h 34m
19. Reactions of Aromatics: EAS and Beyond5h 1m
20. Phenols55m
21. Aldehydes and Ketones: Nucleophilic Addition4h 56m
22. Carboxylic Acid Derivatives: NAS2h 51m
23. The Chemistry of Thioesters, Phophate Ester and Phosphate Anhydrides1h 10m
24. Enolate Chemistry: Reactions at the Alpha-Carbon1h 53m
25. Condensation Chemistry2h 9m
26. Amines1h 43m
27. Heterocycles2h 0m
28. Carbohydrates5h 53m
29. Amino Acids4h 20m
30. Peptides and Proteins2h 42m
31. Catalysis in Organic Reactions1h 30m
32. Lipids 2h 50m
33. The Organic Chemistry of Metabolic Pathways2h 52m
34. Nucleic Acids1h 32m
35. Transition Metals6h 14m
36. Synthetic Polymers1h 49m

22. Carboxylic Acid Derivatives: NAS

Naming Amides

Organic Chemistry

22. Carboxylic Acid Derivatives: NAS

Naming Amides

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1:14 minutes

Problem 42f,g

Textbook Question

Draw structures to correspond with the following common and systematic names:
(f) benzoic propionic anhydride
(g) benzamide

Verified step by step guidance

Step 1: Understand the structure of benzoic propionic anhydride. An anhydride is formed by the condensation of two carboxylic acids. In this case, benzoic acid (C₆H₅COOH) and propionic acid (CH₃CH₂COOH) are involved. The anhydride will have the general structure R₁CO-O-COR₂, where R₁ and R₂ are the respective alkyl or aryl groups from the acids.

Step 2: Draw the structure of benzoic propionic anhydride. Place the benzene ring (C₆H₅-) attached to a carbonyl group (C=O) on one side, and the ethyl group (CH₃CH₂-) attached to another carbonyl group (C=O) on the other side, connected by an oxygen atom (O) in the middle.

Step 3: Understand the structure of benzamide. Benzamide is derived from benzoic acid (C₆H₅COOH) by replacing the hydroxyl group (-OH) of the carboxylic acid with an amine group (-NH₂). This results in the structure C₆H₅CONH₂.

Step 4: Draw the structure of benzamide. Start with a benzene ring (C₆H₅-) attached to a carbonyl group (C=O), and then attach an amine group (-NH₂) to the carbonyl carbon.

Step 5: Verify the structures for both compounds. Ensure that the functional groups and connectivity match the names provided: benzoic propionic anhydride should have an anhydride functional group with one benzoyl and one propionyl group, and benzamide should have an amide functional group attached to a benzene ring.

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Key Concepts

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

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. In the case of benzoic propionic anhydride, the anhydride functional group is crucial for understanding its reactivity and structure. Similarly, benzamide contains an amide functional group, which influences its properties and behavior in chemical reactions.

Nomenclature

Nomenclature in organic chemistry refers to the systematic naming of chemical compounds based on their structure and functional groups. Understanding the IUPAC naming conventions is essential for interpreting names like 'benzoic propionic anhydride' and 'benzamide,' as it provides insight into the molecular structure and the relationships between different components of the compounds.

Structural Representation

Structural representation involves depicting the arrangement of atoms within a molecule, which is vital for visualizing and understanding chemical compounds. Drawing the structures corresponding to the names given requires knowledge of how to represent functional groups, bonds, and molecular geometry accurately, allowing for a clearer understanding of the compounds' properties and reactivity.

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