Classify the each of the following reactions as a substitution, elimination or addition reaction

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
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Classify the each of the following reactions as a substitution, elimination or addition reaction 

### Transcription of Chemical Reactions

#### Reaction (I)

**Reactants:**
- CH₃—CH₂—C(=O)—CH₃ + :⁻CH₃

**Reaction:**
The nucleophile (:⁻CH₃) attacks the carbonyl carbon of CH₃—CH₂—C(=O)—CH₃.

**Product:**
- CH₃—CH₂—C(⁻O⁻)—C(CH₃)₂

This reaction represents a nucleophilic attack on a carbonyl compound, resulting in a new carbon-carbon bond and the formation of an alkoxide ion.

#### Reaction (II)

**Reactants:**
- CH₃—CH₂—C(Br)—CH₂—CH₃ (1-Bromo-3-pentane)
- Base

**Reaction:**
The base abstracts a proton, initiating an elimination reaction.

**Products:**
- CH₃—CH₂—C(=CH₂)—CH₃ (Alkene product)
- HBr

This reaction demonstrates an E2 elimination mechanism where a β-hydrogen is removed, resulting in the formation of a double bond and the release of HBr.
Transcribed Image Text:### Transcription of Chemical Reactions #### Reaction (I) **Reactants:** - CH₃—CH₂—C(=O)—CH₃ + :⁻CH₃ **Reaction:** The nucleophile (:⁻CH₃) attacks the carbonyl carbon of CH₃—CH₂—C(=O)—CH₃. **Product:** - CH₃—CH₂—C(⁻O⁻)—C(CH₃)₂ This reaction represents a nucleophilic attack on a carbonyl compound, resulting in a new carbon-carbon bond and the formation of an alkoxide ion. #### Reaction (II) **Reactants:** - CH₃—CH₂—C(Br)—CH₂—CH₃ (1-Bromo-3-pentane) - Base **Reaction:** The base abstracts a proton, initiating an elimination reaction. **Products:** - CH₃—CH₂—C(=CH₂)—CH₃ (Alkene product) - HBr This reaction demonstrates an E2 elimination mechanism where a β-hydrogen is removed, resulting in the formation of a double bond and the release of HBr.
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