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

Alkyl Groups

Organic Chemistry

4. Alkanes and Cycloalkanes

Alkyl Groups

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0:57 minutes

Problem 12f

Textbook Question

Which isomers contain a tert-butyl group?

Verified step by step guidance

Step 1: Understand the structure of a tert-butyl group. A tert-butyl group is a branched alkyl group with the formula (CH₃)₃C-. It consists of a central carbon atom bonded to three methyl groups and one other group.

Step 2: Analyze each isomer in the image to identify the presence of a tert-butyl group. Look for a central carbon atom bonded to three methyl groups.

Step 3: Examine Isomer 6. It contains a central carbon atom bonded to three methyl groups, which is characteristic of a tert-butyl group.

Step 4: Examine Isomer 11. It also contains a central carbon atom bonded to three methyl groups, indicating the presence of a tert-butyl group.

Step 5: Conclude that Isomers 6 and 11 contain a tert-butyl group based on their structural features.

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Key Concepts

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

Tert-butyl group

The tert-butyl group is a branched alkyl group derived from butane, characterized by the structure -C(CH3)3. It consists of a central carbon atom bonded to three methyl groups and one other carbon chain. This group is commonly encountered in organic chemistry and is significant in determining the properties and reactivity of molecules.

Isomerism

Isomerism refers to the phenomenon where two or more compounds have the same molecular formula but different structural arrangements or spatial orientations. In organic chemistry, isomers can be classified into structural isomers, which differ in the connectivity of atoms, and stereoisomers, which differ in the spatial arrangement of atoms. Understanding isomerism is crucial for identifying and categorizing organic compounds.

Structural representation

Structural representation in organic chemistry visually depicts the arrangement of atoms within a molecule. It includes line-angle formulas, which simplify the representation of carbon chains and functional groups. Analyzing structural representations helps chemists identify functional groups, isomers, and the overall molecular architecture, which is essential for understanding chemical behavior and reactivity.