Chemistry
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

**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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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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