Table of contents

1. Matter and Measurements4h 31m
2. Atoms and the Periodic Table5h 23m
3. Ionic Compounds2h 18m
4. Molecular Compounds2h 18m
5. Classification & Balancing of Chemical Reactions3h 17m
6. Chemical Reactions & Quantities2h 27m
7. Energy, Rate and Equilibrium3h 46m
8. Gases, Liquids and Solids3h 25m
9. Solutions4h 10m
10. Acids and Bases3h 29m
11. Nuclear Chemistry56m
BONUS: Lab Techniques and Procedures1h 38m
BONUS: Mathematical Operations and Functions47m
12. Introduction to Organic Chemistry1h 34m
13. Alkenes, Alkynes, and Aromatic Compounds2h 12m
14. Compounds with Oxygen or Sulfur1h 6m
15. Aldehydes and Ketones1h 1m
16. Carboxylic Acids and Their Derivatives1h 11m
17. Amines39m
18. Amino Acids and Proteins1h 51m
19. Enzymes1h 37m
20. Carbohydrates1h 41m
21. The Generation of Biochemical Energy2h 8m
22. Carbohydrate Metabolism2h 22m
23. Lipids2h 26m
24. Lipid Metabolism1h 45m
25. Protein and Amino Acid Metabolism1h 37m
26. Nucleic Acids and Protein Synthesis2h 54m

14. Compounds with Oxygen or Sulfur

Alcohol Reactions: Dehydration Reactions

GOB Chemistry

14. Compounds with Oxygen or Sulfur

Alcohol Reactions: Dehydration Reactions

Previous problemNext problem

Problem 27b

Textbook Question

Draw the condensed structural or line-angle formula for the alkene produced by each of the following dehydration reactions:
b.

Verified step by step guidance

Identify the alcohol group (-OH) in the given molecule. Dehydration reactions typically involve the removal of a water molecule (H₂O) from an alcohol.

Determine the hydrogen atom that will be removed along with the hydroxyl group (-OH). This is usually a hydrogen atom from a carbon atom adjacent to the carbon bearing the -OH group.

Apply the Zaitsev's rule, which states that the more substituted alkene (the one with more alkyl groups attached to the double-bonded carbons) is generally the major product of the reaction.

Remove the -OH group and the adjacent hydrogen atom, forming a double bond between the two carbon atoms that were previously connected to these groups.

Draw the condensed structural formula or line-angle formula of the resulting alkene, ensuring the double bond is correctly placed and the structure adheres to the rules of organic chemistry.

Verified video answer for a similar problem:

This video solution was recommended by our tutors as helpful for the problem above

Play a video:

Was this helpful?

Key Concepts

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

Dehydration Reaction

A dehydration reaction is a chemical process in which a water molecule is removed from a compound, typically resulting in the formation of a double bond. In organic chemistry, this often involves the conversion of alcohols into alkenes. Understanding this reaction is crucial for predicting the products formed when specific alcohols undergo dehydration.

Alkene Structure

Alkenes are hydrocarbons that contain at least one carbon-carbon double bond (C=C). They are characterized by their unsaturation, which affects their reactivity and physical properties. Recognizing the structural representation of alkenes, including condensed structural and line-angle formulas, is essential for visualizing and understanding their chemical behavior.

Line-Angle Formula

The line-angle formula, also known as the skeletal formula, is a simplified way of drawing organic molecules where vertices represent carbon atoms and lines represent bonds. This method omits hydrogen atoms attached to carbons for clarity, making it easier to visualize complex structures. Mastery of this representation is important for accurately depicting the products of dehydration reactions.

Watch next

Master Alcohol Reactions: Dehydration Reactions Concept 1 with a bite sized video explanation from Jules

Start learning

Related Videos

Related Practice

Textbook Question

What alkenes might be formed by dehydration of the following alcohols? If more than one product is possible in a given case, indicate which is major.

609

views

Textbook Question

What alcohols yield the following alkenes as the major product on dehydration?

650

views

Textbook Question

Predict the product of the following reaction:

<IMAGE>

1265

views

Textbook Question

Draw the condensed structural or line-angle formula for the alkene, aldehyde, or ketone product of each of the following reactions:

805

views

Textbook Question

Draw the condensed structural or line-angle formula for the alkene produced by each of the following dehydration reactions:

598

views

Textbook Question

Draw the condensed structural or line-angle formula for the alkene, aldehyde, or ketone product of each of the following reactions:

663

views

Textbook Question

The reverse reaction of hydration is dehydration. The dehydration of an alcohol involves removing an OH from one carbon and an H from the carbon next to it to form an alkene. In glycolysis, the enzyme enolase catalyzes the dehydration of 2-phosphoglycerate to form phosphoenolpyruvate (PEP), which contains a carbon–carbon double bond. Complete the reaction below by drawing the structure of PEP.

618

views

Multiple Choice

Determine the name of the alkene product formed in the following dehydration reaction.