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

4. Alkanes and Cycloalkanes

Naming Amines

Organic Chemistry

4. Alkanes and Cycloalkanes

Naming Amines

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5:54 minutes

Problem 29c

Textbook Question

Draw condensed and skeletal structures for each of the following amines:
c. 5-methyl-1-hexanamine

Verified step by step guidance

Identify the parent chain: The parent chain is a hexane molecule (6 carbon atoms in a straight chain) because the name includes 'hexanamine'. The '1-' indicates that the amine group (-NH₂) is attached to the first carbon of the chain.

Locate the substituent: The '5-methyl' indicates that a methyl group (-CH₃) is attached to the fifth carbon of the hexane chain.

Draw the condensed structure: Start with the hexane chain, add the -NH₂ group to the first carbon, and place the -CH₃ group on the fifth carbon. The condensed structure will look like CH₃-CH₂-CH₂-CH₂-CH(CH₃)-CH₂-NH₂.

Draw the skeletal structure: Represent the hexane chain as a zigzag line with six vertices (each vertex represents a carbon atom). Add the -NH₂ group to the first vertex and a branch (representing the -CH₃ group) to the fifth vertex.

Double-check the structure: Ensure that all carbons have four bonds, the amine group is correctly placed on the first carbon, and the methyl group is correctly placed on the fifth carbon. Verify that the structure matches the IUPAC name.

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Key Concepts

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

Amines

Amines are organic compounds derived from ammonia (NH3) by replacing one or more hydrogen atoms with alkyl or aryl groups. They can be classified as primary, secondary, or tertiary based on the number of carbon-containing groups attached to the nitrogen atom. Understanding the structure and classification of amines is essential for drawing their condensed and skeletal forms.

Condensed Structures

Condensed structures provide a simplified representation of a molecule, showing the connectivity of atoms without depicting all the bonds explicitly. In the case of amines, the condensed structure will indicate the arrangement of carbon chains and the presence of the amine functional group (-NH2) in a compact format. This format is useful for quickly conveying molecular information.

Skeletal Structures

Skeletal structures, or line-angle structures, are a way of representing organic molecules where carbon atoms are implied at the ends of lines and at intersections. Hydrogen atoms attached to carbons are usually omitted for clarity. This representation is particularly useful for visualizing larger organic molecules, such as amines, as it simplifies the drawing and emphasizes the functional groups.

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