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

18. Aromaticity

Naming Benzene Rings

Organic Chemistry

18. Aromaticity

Naming Benzene Rings

Previous problemNext problem

3:38 minutes

Problem 12c,d

Textbook Question

Correct the following incorrect names:
c. para-methylbromobenzene
d. 1,6-dichlorobenzene

Verified step by step guidance

Step 1: Identify the structure of the compound in the image. Look for the longest continuous carbon chain to determine the base name of the compound.

Step 2: Number the carbon atoms in the longest chain starting from the end nearest to the first substituent. This will help in assigning the correct locants to the substituents.

Step 3: Identify and name all substituents attached to the main carbon chain. Common substituents include alkyl groups like methyl, ethyl, etc.

Step 4: Combine the names of the substituents with the base name of the compound. Use the locants to indicate the position of each substituent on the main chain.

Step 5: Ensure that the name follows IUPAC nomenclature rules, which include using the lowest possible numbers for substituents and arranging substituents alphabetically if there are multiple different groups.

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.

IUPAC Nomenclature

IUPAC nomenclature is a systematic method for naming organic chemical compounds. It provides rules for naming based on the structure of the molecule, including the longest carbon chain, functional groups, and substituents. Understanding these rules is essential for correcting incorrect names, as it allows one to identify the proper naming conventions for various organic structures.

Functional Groups

Functional groups are specific groups of atoms within molecules that are responsible for the characteristic chemical reactions of those molecules. Recognizing functional groups is crucial for naming compounds correctly, as they often dictate the suffix or prefix used in the IUPAC name. Examples include hydroxyl (-OH), carboxyl (-COOH), and amino (-NH2) groups.

Structural Isomerism

Structural isomerism occurs when compounds have the same molecular formula but different structural arrangements of atoms. This concept is important in organic chemistry as it affects the naming of compounds; isomers can have distinct names based on their structure. Understanding isomerism helps in identifying and correcting names that may refer to different structural forms of the same molecular formula.

Watch next

Master Benzene Nomenclature with a bite sized video explanation from Johnny

Start learning