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

Previous problemNext problem

2:31 minutes

Problem 55c,d

Textbook Question

Draw a condensed structure and a skeletal structure for each of the following:
c. sec-butylamine
d. isopentyl bromide

Verified step by step guidance

Step 1: Understand the naming conventions for the given compounds. 'Sec-butylamine' refers to a secondary butyl group attached to an amine (-NH2), while 'isopentyl bromide' refers to an isopentyl group attached to a bromine atom.

Step 2: For sec-butylamine, identify the structure of the sec-butyl group. A sec-butyl group is a four-carbon chain where the functional group (-NH2 in this case) is attached to the second carbon. Write the condensed structure by arranging the atoms in a linear format, showing connectivity.

Step 3: For sec-butylamine, draw the skeletal structure. In skeletal structures, carbon atoms are represented as vertices, and hydrogen atoms bonded to carbons are implied. Show the -NH2 group explicitly attached to the second carbon.

Step 4: For isopentyl bromide, identify the structure of the isopentyl group. An isopentyl group is a five-carbon chain with a branching at the second carbon. Attach the bromine atom to the terminal carbon. Write the condensed structure by arranging the atoms in a linear format, showing connectivity.

Step 5: For isopentyl bromide, draw the skeletal structure. Represent the five-carbon chain with the branching at the second carbon and explicitly show the bromine atom attached to the terminal carbon.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above

Video duration:

Play a video:

Was this helpful?

Key Concepts

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

Condensed Structure

A condensed structure is a way of representing a molecule that shows the arrangement of atoms and their connectivity without depicting all the bonds explicitly. In this format, groups of atoms are often grouped together, and hydrogen atoms attached to carbons are usually omitted for simplicity. This representation helps in visualizing the molecular formula and understanding the functional groups present in the compound.

Skeletal Structure

A skeletal structure, also known as a line-angle structure, is a simplified representation of organic molecules where carbon atoms are represented by vertices or ends of lines, and hydrogen atoms are not shown explicitly. Each vertex represents a carbon atom, and the implicit hydrogen atoms are assumed to satisfy the tetravalency of carbon. This method is particularly useful for illustrating larger organic molecules clearly and efficiently.

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. They determine the properties and reactivity of organic compounds. For example, in sec-butylamine, the amine group (-NH2) is the functional group that influences its behavior, while in isopentyl bromide, the bromine atom is part of the alkyl halide functional group, affecting its reactivity in nucleophilic substitution reactions.

Watch next

Master Naming Primary Amines with a bite sized video explanation from Johnny

Start learning