What is each compound's systematic name? a. CH 3 C☰CCH 2 CH 2 CH 2 CH═CH 2

Hello, everyone. Today, we have the following problem, determine the compound's Iupac name. So the first step in determining the Iupac name is to determine the parent chain, which is the longest continuous carbon chain. And since we have an alkin in an alkene, the alkin takes precedence and becomes the parent name. And so we have to give the alkin the shortest number or the or the lowest number when counting. So if you start from the left side of the molecule, we give our alkene carbons two and three, our alkin carbons, two and three. Then we continue noting that we also have our alkene in our parent chain. And then we on carbon eight, we have two eyl groups so we can go up or to the right. However, it doesn't matter, we both get two carbons. So for our parent chain, we have 10 carbons. So we start off with deck and then we have to make note of our al that is included. It is essentially a substituent in, within our parent name. So we have seven in and then we have two on because we have an alk carbon two. And so the next step is to label these substituent. And so substituent are any groups that are not a part of the parent chain. And we have two of them on carbon seven, we have a methyl. So we have seven methyl and then the carbon eight, we have an ethyl. So we have eight ethyl. And so the third and final step is putting our substituent and our parent name together for the full name. And we have to start with our substituent. And then we do this in mathematical where the comes with four meth. So we have eight apple, seven methyl and then we have our parent name, which is Dick too. I and so with that, we have solved the problem overall, I hope it helped. And until next time.

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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 Alkenes

Organic Chemistry

4. Alkanes and Cycloalkanes

Naming Alkenes

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1:49 minutes

Problem 41a

Textbook Question

What is each compound's systematic name?
a. CH₃C☰CCH₂CH₂CH₂CH═CH₂

Verified step by step guidance

Step 1: Identify the longest continuous carbon chain in the molecule. This chain will determine the base name of the compound. Count the number of carbons in the chain, ensuring it includes both the triple bond (alkyne) and the double bond (alkene).

Step 2: Assign priority to the functional groups. In this case, the triple bond (alkyne) and the double bond (alkene) are both present. The double bond takes precedence in numbering the chain, so start numbering from the end closest to the double bond.

Step 3: Determine the position of the triple bond and the double bond within the chain. Use the numbering system established in Step 2 to assign the lowest possible numbers to these bonds. For example, the double bond might be at position 7, and the triple bond at position 2.

Step 4: Combine the names of the functional groups with the base name of the chain. Use the suffix '-yne' for the triple bond and '-ene' for the double bond, and include their positions in the name. For example, the name might include 'hept-7-ene-2-yne' to indicate the positions of the double and triple bonds.

Step 5: Add any substituents to the name. Identify and name any groups attached to the main chain, such as methyl groups. Include their positions in the name, ensuring the numbering is consistent with the priority rules. For example, '3-methyl' might be added to the name if a methyl group is attached at position 3.

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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 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 the position of double or triple bonds. Understanding these rules is essential for accurately determining the systematic name of a compound.

Alkenes and Alkynes

Alkenes and alkynes are types of unsaturated hydrocarbons characterized by the presence of double and triple bonds, respectively. Alkenes contain at least one carbon-carbon double bond (C=C), while alkynes have at least one carbon-carbon triple bond (C≡C). Recognizing these functional groups is crucial for naming compounds and understanding their reactivity.

Chain Length and Substituents

The chain length of a hydrocarbon refers to the number of carbon atoms in the longest continuous chain. Substituents are groups attached to this chain that can influence the compound's name and properties. Identifying the main chain and any substituents is vital for applying IUPAC rules to derive the correct systematic name.

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