Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Transcribed Image Text:**Q7. Write the mechanism for the following reactions**
**1. Reaction Mechanism:**
The reaction involves an aldehyde reacting with an alcohol in the presence of acid (H⁺) to form an acetal.
- **Reactants:**
- Aldehyde with a carbonyl group (C=O).
- Alcohol (R-OH).
- **Conditions:**
- Acidic medium (H⁺).
- **Product:**
- Acetal (an ether derivative with two -OR groups on the same carbon).
- Water (H₂O) is released as a byproduct.
**2. Reaction Mechanism:**
The reaction involves an aldehyde being converted to an imine in the presence of a primary amine.
- **Reactants:**
- Aldehyde with a carbonyl group (C=O).
- Primary amine (NH₂).
- **Conditions:**
- Acidic medium (H⁺).
- **Product:**
- Imine (a compound with a C=N bond).
- Water (H₂O) is released as a byproduct.
**Explanation of Diagrams:**
1. **First Reaction:**
- The diagram shows the conversion of a simple aldehyde to an acetal in an acidic medium. The reaction progresses from left to right, depicting the combination of reactants and formation of an acetal.
2. **Second Reaction:**
- The second diagram illustrates the transformation of a cyclic aldehyde to an imine. The reaction proceeds from left to right, where the nitrogen of the amine attacks the carbonyl carbon, leading to the formation of an imine with water as a byproduct.
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