H3C H3C H3C N' H CH3 CI SOCI2 pyridine OH

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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### Transcription and Explanation of Chemical Reactions

This image showcases a series of chemical reactions with different reagents and starting materials.

#### Reaction 1:
- **Starting Material:** Cyclohexanone
- **Reagent:** S-Ethyl-2-methyl-2-propanethioate
- **Product:** Likely results in a thioacetal formation involving cyclohexanone and the thioester provided.

#### Reaction 2:
- **Starting Material:** Cyclobutanone with a chloro substituent on the α-carbon
- **Reagent:** Dimethylamine (CH₃NHCH₃)
- **Product:** Expected to form an enamine through substitution, where the chlorine atom is replaced by the dimethylamino group.

#### Reaction 3:
- **Starting Material:** Propanoic acid
- **Reagent:** Thionyl chloride (SOCl₂) with pyridine
- **Product:** Conversion of the carboxylic acid to an acyl chloride via substitution. Pyridine acts as a base to neutralize the HCl produced in the reaction.

Each of these reactions demonstrates a different type of organic transformation: thioacetal formation, substitution to form an enamine, and conversion of a carboxylic acid to an acyl chloride. These reactions are useful in various synthetic pathways in organic chemistry.
Transcribed Image Text:### Transcription and Explanation of Chemical Reactions This image showcases a series of chemical reactions with different reagents and starting materials. #### Reaction 1: - **Starting Material:** Cyclohexanone - **Reagent:** S-Ethyl-2-methyl-2-propanethioate - **Product:** Likely results in a thioacetal formation involving cyclohexanone and the thioester provided. #### Reaction 2: - **Starting Material:** Cyclobutanone with a chloro substituent on the α-carbon - **Reagent:** Dimethylamine (CH₃NHCH₃) - **Product:** Expected to form an enamine through substitution, where the chlorine atom is replaced by the dimethylamino group. #### Reaction 3: - **Starting Material:** Propanoic acid - **Reagent:** Thionyl chloride (SOCl₂) with pyridine - **Product:** Conversion of the carboxylic acid to an acyl chloride via substitution. Pyridine acts as a base to neutralize the HCl produced in the reaction. Each of these reactions demonstrates a different type of organic transformation: thioacetal formation, substitution to form an enamine, and conversion of a carboxylic acid to an acyl chloride. These reactions are useful in various synthetic pathways in organic chemistry.
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