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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2:25 minutes

Problem 43i,j

Textbook Question

Give appropriate names for the following compounds:
(i)
(j)

Verified step by step guidance

Step 1: Analyze the first compound (i). The structure contains a benzene ring with two substituents attached to it. Both substituents are ester groups (-COOCH₃) located at opposite positions (para position). This indicates a symmetrical substitution pattern.

Step 2: Assign the base name for the benzene ring. Since the substituents are esters, the parent name will be derived from 'benzene' with the prefix indicating the ester groups.

Step 3: Name the ester groups. Each ester group is a methoxycarbonyl group (-COOCH₃). Since they are located at the para position, the compound is named as 'para-dimethoxycarbonylbenzene' or '1,4-dimethoxycarbonylbenzene'.

Step 4: Analyze the second compound (j). The structure contains a benzene ring with two substituents: a methyl group (-CH₃) and an amide group (-CON(CH₂CH₃)₂). The methyl group is at the ortho position relative to the amide group.

Step 5: Assign the base name for the benzene ring in the second compound. The amide group (-CON(CH₂CH₃)₂) is the principal functional group, so the compound is named as 'N,N-diethyl-2-methylbenzamide'. The numbering starts from the amide group to give it the lowest possible number.

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Key Concepts

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

Nomenclature of Organic Compounds

Nomenclature in organic chemistry refers to the systematic naming of chemical compounds based on their structure and functional groups. The International Union of Pure and Applied Chemistry (IUPAC) provides rules for naming compounds, which include identifying the longest carbon chain, naming substituents, and indicating functional groups. Understanding these rules is essential for accurately naming complex molecules.

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. Common functional groups include amides, esters, and methoxy groups. Recognizing these groups helps in predicting the behavior of compounds and is crucial for proper nomenclature, as the presence of certain functional groups influences the naming conventions.

Aromatic Compounds

Aromatic compounds are a class of cyclic compounds that contain conjugated pi electron systems, which follow Huckel's rule of 4n+2 pi electrons. These compounds, such as benzene and its derivatives, exhibit unique stability and reactivity due to resonance. Understanding the properties of aromatic compounds is vital for naming and predicting the behavior of compounds that contain benzene rings and substituents.

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