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 Cycloalkanes

Organic Chemistry

4. Alkanes and Cycloalkanes

Naming Cycloalkanes

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5:33 minutes

Problem 36e,f

Textbook Question

Draw the structure that corresponds with each name.
e. 2,2,4,4-tetramethylhexane
f. trans-1,3-diethylcyclopentane

Verified step by step guidance

To draw 2,2,4,4-tetramethylhexane, start by identifying the parent chain. The parent chain is 'hexane', which means it has 6 carbon atoms in a straight chain.

Next, identify the substituents. The name '2,2,4,4-tetramethyl' indicates that there are four methyl groups attached to the parent chain. Two methyl groups are attached to carbon 2, and two are attached to carbon 4.

Draw the hexane chain by arranging six carbon atoms in a linear sequence. Then, add the methyl groups: two on the second carbon and two on the fourth carbon.

For trans-1,3-diethylcyclopentane, start by drawing the cyclopentane ring, which is a five-membered carbon ring.

Identify the substituents: '1,3-diethyl' means there are ethyl groups attached to carbons 1 and 3. The 'trans' configuration indicates that these ethyl groups are on opposite sides of the cyclopentane ring. Draw the ethyl groups accordingly, ensuring they are on opposite sides of the plane of the ring.

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Key Concepts

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

IUPAC Nomenclature

IUPAC nomenclature is a standardized system for naming chemical compounds. It involves identifying the longest carbon chain, numbering the chain to give substituents the lowest possible numbers, and naming substituents as prefixes. Understanding this system is crucial for interpreting and drawing structures from chemical names.

Structural Isomers

Structural isomers are compounds with the same molecular formula but different structural arrangements. In organic chemistry, recognizing how substituents can be arranged differently on a carbon skeleton is essential for drawing accurate structures, as seen in compounds like 2,2,4,4-tetramethylhexane.

Stereochemistry

Stereochemistry involves the study of spatial arrangement of atoms in molecules. Terms like 'trans' indicate specific geometric configurations, where substituents are on opposite sides of a ring or double bond. Understanding stereochemistry is vital for accurately depicting molecules like trans-1,3-diethylcyclopentane.

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