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:Sure, here is the transcribed text for an Educational website, along with detailed explanations of the diagrams:
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## Organic Chemistry: Reduction Reactions
### Diagram 1
**Starting Compound:**
Structure with an aromatic ring, a carboxylic acid (COOH) attached to the ring, and a carbonyl group (C=O) attached to the ring at a different position.
**Reaction Conditions:**
1. **NaBH₄ (excess), CH₃OH**
2. **H₂O, HCl**
**Description:**
In this reaction, sodium borohydride (NaBH₄) is used in excess with methanol (CH₃OH) to reduce the carbonyl group. The presence of water (H₂O) and hydrochloric acid (HCl) assists in the reaction completion.
---
### Diagram 2
**Starting Compound:**
Structure with an aromatic ring, an amide group (NH₂), a chloride (Cl) atom, and two carbonyl groups attached to the ring.
**Reaction Conditions:**
1. **LiAlH₄ (excess), THF**
2. **H₂O, HCl**
**Description:**
Lithium aluminum hydride (LiAlH₄) is used in excess with tetrahydrofuran (THF) to reduce the carbonyl groups. Water (H₂O) and hydrochloric acid (HCl) are used for completion.
---
### Diagram 3
**Starting Compound:**
Structure with an aromatic ring and two carbonyl groups attached to the ring.
**Reaction Conditions:**
1. **NaBD₄ (excess), CH₃OH**
2. **H₂O, HCl**
**Description:**
In this reaction, sodium borodeuteride (NaBD₄) is used in excess with methanol (CH₃OH) to selectively reduce the carbonyl groups, with water and hydrochloric acid facilitating the process.
---
### Diagram 4
**Starting Compound:**
Structure with an aromatic ring and a single carbonyl group at one position.
**Reaction Conditions:**
1. **NaBH₄ (0.25 eq.), CH₃OH**
2. **H₂O, HCl**
**Description:**
Here, sodium borohydride (NaBH₄) is used with methanol (CH₃OH) in a limited quantity (
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