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Chemistry
10th Edition
ISBN: 9781305957404
Author: Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher: Cengage Learning
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2a and 2b

Transcribed Image Text:**Concept Questions**
**Predict the Product.** Provide the stable organic product(s) for the reactions below.
1. The top reaction:
- **Reactants:**
- Left: Cyclohexane-1,3-dione with a methyl group at one of the dione carbons.
- Right: Propylamine (1 equivalent).
- **Steps:**
- 1. 1 eq. Propylamine (NH₂)
- 2. H₂O / HCl
2. The second reaction:
- **Reactants:**
- Left: Acetyl chloride (ethanoyl chloride).
- Right: Tetrahydrofuran-2-ol.
- **Steps:**
- 1. Pyridine
3. The third reaction:
- **Reactants:**
- Left: 2-aminophenol.
- Right: Diketene (excess).
- **Steps:**
- 1. Diketene (excess)
- 2. H₂O
4. The bottom reaction:
- **Reactants:**
- Left: 1,3-benzodioxole-4,5-dione.
- Right: Piperazine (1 equivalent).
- **Steps:**
- 1. 1 eq. Piperazine (NH₂)
- 2. H₂O / HCl
---
In each of the above reactions, the stable organic products formed will depend on the interaction between the reagents and their functional groups, along with the reaction conditions specified.
- The first reaction typically results in the formation of an imine due to the reaction of a ketone and amine, followed by hydrolysis in acidic conditions.
- The second reaction is an esterification reaction facilitated by pyridine which may result in the formation of an ester.
- The third reaction involves the formation of a lactam when diketene reacts with 2-aminophenol and water hydrolyzes it.
- The fourth reaction may produce a hydroxamic acid through reaction with piperazine followed by hydrolysis.
Detailed mechanisms and exact product structures would require drawing tools and a step-by-step mechanistic description.
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