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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4:32 minutes

Problem 2d,e,f

Textbook Question

Draw the structures of the following compounds:
(d) 2-methylaziridine
(e) N-ethyl-N-methylhexan-3-amine
(f) m-chloroaniline

Verified step by step guidance

To draw the structure of 2-methylaziridine, start by understanding that aziridine is a three-membered cyclic amine (a nitrogen atom in a three-membered ring with two carbons). Add a methyl group (-CH₃) as a substituent on the second carbon of the ring. Ensure the nitrogen has a lone pair of electrons.

For N-ethyl-N-methylhexan-3-amine, begin by drawing the main chain, which is hexane (a six-carbon straight chain). Identify the third carbon in the chain and attach an amine group (-NH). Then, attach an ethyl group (-CH₂CH₃) and a methyl group (-CH₃) to the nitrogen atom, as indicated by the 'N-ethyl-N-methyl' prefix.

To draw m-chloroaniline, start with the structure of aniline, which is a benzene ring with an amino group (-NH₂) attached to one of the carbons. The 'm-' prefix indicates that the chlorine atom (-Cl) is attached to the carbon meta to the amino group (one carbon away from the amino group on the benzene ring).

Ensure that all structures are drawn with correct bond angles and that the valency of each atom is satisfied. For example, nitrogen in amines should have three bonds and a lone pair, while carbon should have four bonds.

Double-check the placement of substituents and functional groups to ensure they match the IUPAC naming conventions provided in the problem. Verify that the structures are consistent with the names given.

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Key Concepts

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

Aziridine Structure

Aziridine is a three-membered cyclic amine with one nitrogen atom and two carbon atoms. The '2-methyl' designation indicates a methyl group attached to the second carbon of the ring. Understanding the geometry and bonding in small rings is crucial for accurately drawing aziridine derivatives.

Amine Nomenclature

Amines are organic compounds derived from ammonia by replacing one or more hydrogen atoms with alkyl or aryl groups. The naming convention involves identifying the longest carbon chain and the substituents, such as 'N-ethyl' and 'N-methyl' in the compound N-ethyl-N-methylhexan-3-amine, which indicates the presence of ethyl and methyl groups attached to the nitrogen atom.

Substituted Aromatic Compounds

Substituted aromatic compounds, like m-chloroaniline, feature a benzene ring with one or more substituents. The 'm-' prefix indicates the position of the chloro group relative to the amino group on the benzene ring, specifically in the meta position. Recognizing the implications of substitution patterns is essential for understanding the reactivity and properties of aromatic compounds.

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