step 1 In question 55, we are given the structures for several alkenes and simply ask to name them. The

Name each alkene.

Name: Problem 55, Chapter 18: Introductory Chemistry
Uploaded: 2020-10-13T13:43:00-08:00
Duration: 2 min 6 s
Channel: David Collins
Description: Name each alkene.

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Key Concepts

Stereochemistry in Alkenes

For alkenes that exhibit geometric isomerism around the carbon-carbon double bond, stereochemical descriptors (such as cis/trans or E/Z) are used. These descriptors specify the spatial arrangement of the substituents, which is crucial for accurately representing the molecule's structure.

Substituent Naming and Numbering

If there are substituents attached to the parent chain, they are identified and assigned position numbers. The numbering is done in such a way as to give the double bond and the substituents the lowest possible numbers, following IUPAC rules.

Longest Carbon Chain Determination

When naming alkenes, the longest continuous chain of carbon atoms that includes the double bond is identified as the parent chain. This chain forms the basis of the alkene’s name and ensures that the double bond is given the appropriate priority.

Alkene Structure

Alkenes are hydrocarbons that contain at least one carbon-carbon double bond. This double bond is a key structural feature that influences the reactivity and physical properties of these compounds.

IUPAC Nomenclature

This is the standardized system used to name organic compounds, including alkenes. It provides specific rules for identifying the longest chain, assigning numbers to the carbons, and naming any substituents and functional groups present.

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