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Ch 3: Organic Reactions & Mechanisms: Help & Review

About This Chapter

Check out this help and review chapter to improve your understanding of organic reactions and mechanisms. These simple organic chemistry lessons and quizzes are great options for students who need to study for an exam, complete homework assignments and get ahead in class.

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Anyone who needs help learning or mastering organic reactions and mechanisms will benefit from the lessons in this chapter. There is no faster or easier way to learn about organic reactions and mechanisms. Among those who would benefit are:

  • Students who have fallen behind in understanding organic reactions and mechanisms, such as catalytic hydrogenation and cycloaddition reactions
  • Students who struggle with learning disabilities or learning differences, including autism and ADHD
  • Students who prefer multiple ways of learning organic chemistry (visual or auditory)
  • Students who have missed class time and need to catch up
  • Students who need an efficient way to learn about organic reactions and mechanisms
  • Students who struggle to understand their teachers
  • Students who attend schools without extra organic chemistry learning resources

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Students Will Review:

This chapter helps students review the concepts in an organic reactions and mechanism unit of a standard organic chemistry course. Topics include:

  • Cycloaddition reactions
  • Huisgen cycloaddition mechanisms
  • Azide-alkyne Huisgen and intramolecular Diels-Adler cycloaddition reactions
  • Catalytic hydrogenation
  • The catalytic hydrogenation of alkenes, ketones and alkynes
  • Organic monomer and polymer abiotic synthesis
  • Diels-Adler and Retro-Diels-Adler reactions

34 Lessons in Chapter 3: Organic Reactions & Mechanisms: Help & Review
Test your knowledge with a 30-question chapter practice test
Cycloaddition Reactions in Organic Chemistry

1. Cycloaddition Reactions in Organic Chemistry

The focal point of this lesson will center around a specific type of reaction in organic chemistry known as a cycloaddition reaction. Our lesson will include a brief survey of some of the more important cycloaddition reactions encountered.

Dehydration of Cyclohexanol: Mechanism & Overview

2. Dehydration of Cyclohexanol: Mechanism & Overview

In this lesson, we will focus on the dehydration reaction that cyclohexanol undergoes under acidic conditions to produce cyclohexene, a useful building block in organic chemistry.

Oxidation of Fluorene to Fluorenone Mechanism

3. Oxidation of Fluorene to Fluorenone Mechanism

The focus of this lesson will be on a specific organic reaction in which fluorene is oxidized to fluorenone. Our goal will be to understand how this reaction happens by studying the reaction mechanism.

Reduction of Fluorenone to Fluorenol

4. Reduction of Fluorenone to Fluorenol

In this lesson, we are going to be learning about a specific chemical reaction that involves a compound called fluorenone and its reduction to an alcohol called fluorenol.

Huisgen Cycloaddition: Mechanism & Overview

5. Huisgen Cycloaddition: Mechanism & Overview

The primary focal point of this lesson will be on an organic chemistry reaction known as the Huisgen cycloaddition. Our points of discussion will be the general reaction form and how the reaction occurs in terms of the mechanism.

Azide-Alkyne Huisgen Cycloaddition Reactions

6. Azide-Alkyne Huisgen Cycloaddition Reactions

The focal point of this lesson will be on a specific type of reaction in organic chemistry called a cycloaddition reaction. Our discussions will center around the azide-alkyne Huisgen cycloaddition.

Intramolecular Diels-Alder Cycloaddition Reactions

7. Intramolecular Diels-Alder Cycloaddition Reactions

The Diels-Alder reaction forms a new cyclohexagon. When the diene and dienophile are on the same molecule, an intramolecular reaction occurs. We will learn under what conditions this reaction can occur and look at some examples.

What is Catalytic Hydrogenation? - Mechanism & Reaction

8. What is Catalytic Hydrogenation? - Mechanism & Reaction

In this lesson you will learn all about catalytic hydrogenation. In addition to its definition, you will learn what is needed to perform catalytic hydrogenation and its reaction mechanism.

Catalytic Hydrogenation of Alkenes: Mechanism & Explanation

9. Catalytic Hydrogenation of Alkenes: Mechanism & Explanation

Alkenes undergo addition reactions with hydrogen under certain conditions. This lesson will walk you through the mechanism behind hydrogenation of alkenes.

Catalytic Hydrogenation of Ketones: Mechanism & Explanation

10. Catalytic Hydrogenation of Ketones: Mechanism & Explanation

The goal of this lesson will be to gain an understanding of how ketones are hydrogenated by taking a look at the reaction mechanism and getting an explanation for how the reaction happens.

Catalytic Hydrogenation of Alkynes: Mechanism & Explanation

11. Catalytic Hydrogenation of Alkynes: Mechanism & Explanation

The main focus of this lesson will be on a specific organic transformation, the hydrogenation of alkynes. Our points of discussion will include the general form of the reaction as well as an explanation behind the mechanism.

Diels-Alder Reaction: Mechanism & Stereochemistry

12. Diels-Alder Reaction: Mechanism & Stereochemistry

In this lesson we will learn the mechanism by which the Diels-Alder reaction creates a new six-membered ring. We will learn what reactants are necessary, and how the stereochemistry of the products turns out based on the reactants.

Retro-Diels-Alder Reaction: Mechanism & Overview

13. Retro-Diels-Alder Reaction: Mechanism & Overview

In this lesson we will learn about the Retro-Diels-Alder reaction and how it works as the reverse of the Diels-Alder reaction. We will learn how to determine what products are formed and the stereochemistry of those products.

What is a Hemiacetal? - Formation & Definition

14. What is a Hemiacetal? - Formation & Definition

The hemiacetal is part of what makes sugar sweet. In this lesson we will learn about the structure of the hemiacetal and how to identify the hemiacetal. We will also learn how it is formed.

Formation of Cyclic Acetals

15. Formation of Cyclic Acetals

The primary focal point of this lesson will be on a specific transformation in organic chemistry known as cyclic acetal formation. We will begin with why the reaction is important followed by a detailed look at how the reaction occurs via its mechanism.

Synthesis of Hydantoin & Its Derivatives

16. Synthesis of Hydantoin & Its Derivatives

The focus of this lesson will be on a heterocyclic organic compound known as hydantoin. Our primary points of discussion will be on its structure, synthesis, and important derivatives.

Bromination of Acetanilide: Mechanism & Explanation

17. Bromination of Acetanilide: Mechanism & Explanation

The primary focus of this lesson is on a specific organic chemistry reaction: namely, the bromination of acetanilide. Our goal is to understand how the reaction happens in terms of its mechanism.

Hydrolysis of Acetanilide: Mechanism & Explanation

18. Hydrolysis of Acetanilide: Mechanism & Explanation

In this lesson, we will get a detailed overview of the hydrolysis reaction acetanilide undergoes under acidic conditions. The primary focus will be on the mechanistic steps and an explanation behind each step of the process.

Acetone Reactions with Water, Alcohol & Iodine

19. Acetone Reactions with Water, Alcohol & Iodine

If you've heard of nail polish remover, you've heard of acetone. This lesson will explore the chemical features of acetone as well as how it reacts with water, alcohol, and iodine.

What is Acetylation? - Mechanism & Definition

20. What is Acetylation? - Mechanism & Definition

In this lesson, you will learn all about acetylation. You will learn exactly what it is, why it happens, and about the mechanism by which this particular reaction proceeds.

Acetylation of Ferrocene: Mechanism & Explanation

21. Acetylation of Ferrocene: Mechanism & Explanation

Have you ever wondered what interesting compounds iron can form? In this lesson we will be learning about how an iron-containing compound called ferrocene undergoes a reaction called acetylation by talking about the reaction mechanism and explaining the individual steps.

What is Acetylcholinesterase? - Function & Definition

22. What is Acetylcholinesterase? - Function & Definition

This lesson introduces a biological enzyme called acetylcholinesterase. Our primary points of discussion will center around its definition and how it functions at the cellular level.

Acetylcholinesterase: Reaction & Mechanism of Action

23. Acetylcholinesterase: Reaction & Mechanism of Action

Acetylcholinesterase is one of the fastest enzymes in the body. In this lesson, we will learn what it does and the mechanism by which the reaction occurs.

Acetylcholinesterase Inhibitors: Examples & Mechanism

24. Acetylcholinesterase Inhibitors: Examples & Mechanism

In this lesson we'll be learning about inhibitors of the enzyme acetylcholinesterase. We'll learn how these drugs work, different examples and what they are used for.

Acid-Base Extraction: Theory, Purpose & Procedure

25. Acid-Base Extraction: Theory, Purpose & Procedure

The focus of this lesson will be on learning the purpose, theory, and procedure behind separating organic acids and bases from one another when they are present together as a mixture.

Acid-Catalyzed Dehydration of Alcohols: Reaction & Mechanism

26. Acid-Catalyzed Dehydration of Alcohols: Reaction & Mechanism

This lesson will focus on the detailed mechanism behind how organic alcohols undergo a dehydration reaction in the presence of an acid to produce alkenes.

Acid-Catalyzed Ester Hydrolysis: Procedure & Mechanism

27. Acid-Catalyzed Ester Hydrolysis: Procedure & Mechanism

In this lesson, you will learn what an Acid-Catalyzed Ester Hydrolysis is, as well as the procedure for performing this reaction and the reaction mechanism.

What is Transesterification? - Definition & Mechanism

28. What is Transesterification? - Definition & Mechanism

This lesson describes transesterification reactions and provides examples. The mechanism of transesterification in both acidic and basic conditions is also covered.

Chromic Acid Test for Aldehydes & Alcohols Mechanism

29. Chromic Acid Test for Aldehydes & Alcohols Mechanism

The chromic acid test is used to measure alcohols and aldehydes. We'll learn how this reaction occurs and what allows it to indicate the presence of alcohols and aldehydes.

Methyl Red Test for Bacteria: Procedure & Principle

30. Methyl Red Test for Bacteria: Procedure & Principle

E-coli is a dangerous bacteria, and there are several tests that can be performed to identify if E-coli is present. Methyl red is one of these tests. In this lesson, we will learn how to perform this test.

Solvolysis: Hydrolysis, Alcoholysis & Ammonolysis

31. Solvolysis: Hydrolysis, Alcoholysis & Ammonolysis

How can a solvent be used as part of a chemical reaction? This lesson will focus on the general process of solvolysis by specifically using the reactions called hydrolysis, alcoholysis, and ammonolysis as examples.

Alkoxymercuration-Demercuration of Ethers: Mechanism & Example

32. Alkoxymercuration-Demercuration of Ethers: Mechanism & Example

In this lesson, you'll learn how ethers can be synthesized using alkoxymercuration-demercuration. You'll study the reaction mechanism and see an example.

Alkoxymercuration vs. Oxymercuration

33. Alkoxymercuration vs. Oxymercuration

Ethers and alcohols are used for a variety of purposes, and there are several different methods to form ethers and alcohols. In this lesson we will learn about alkoxymercuration and oxymercuration.

Birch Reduction: Mechanism, Procedure & Examples

34. Birch Reduction: Mechanism, Procedure & Examples

Strong reducers typical fully reduce a compound. The Birch reduction is unique because it only selectively reduces compounds. In this lesson we will learn about the mechanism by which this occurs.

Chapter Practice Exam
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