Kenalpasti sebatian A hingga E. Identify compound A to E. В H2SO4 но NH2 1) A D 2) H,O* NAOH PCC, РСС, 1) 3CH,I CH2C2, A 2) Аg20, H-0, Д C E

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Identify compound A to E

 

**Question 7: Identify Compound A to E**

This chemical reaction sequence involves multiple steps starting from a specific organic compound, leading to various products (compounds A to E). 

1. The starting compound is a cyclopentane derivative with a carbon chain and a hydroxyl (OH) group attached.

2. When treated with sulfuric acid (H₂SO₄) and heated (represented by the triangle symbol, Δ), it undergoes a reaction that forms an intermediate compound, identified as compound A.

3. Compound A is then transformed through a series of reactions as follows:
   
   - Step 1: Reaction with element/compound (not specified in provided text).
   - Step 2: Reaction with an aldehyde (O=CH₂) in the presence of a hydronium ion (H₃O⁺), producing compound B.

4. The intermediate product (compound B) undergoes oxidation with Pyridinium Chlorochromate (PCC) in dichloromethane (CH₂Cl₂) under heating conditions (Δ) to form compound C.

5. Compound C is then chlorinated to form compound D.

6. Compound D is treated with sodium hydroxide (NaOH) to form an amine (NH₂) group, resulting in compound E.

7. Finally, Compound E undergoes methylation with iodomethane (CH₃I) and subsequent reaction with silver oxide (Ag₂O) in water under heating conditions (Δ), leading to the final product.

**Diagram Explanation:**

- The starting compound, a cyclopentane derivative, undergoes various reactions.
- Reagents and conditions for each step include:
  - H₂SO₄ and Δ for the first transformation.
  - PCC, CH₂Cl₂, Δ for oxidation.
  - NaOH for converting a chloro derivative to an amine.
  - 3CH₃I and Ag₂O, H₂O, Δ for the final step.

By analyzing each product and reagent involved, students are required to identify compounds A to E in this organic synthesis pathway.
Transcribed Image Text:**Question 7: Identify Compound A to E** This chemical reaction sequence involves multiple steps starting from a specific organic compound, leading to various products (compounds A to E). 1. The starting compound is a cyclopentane derivative with a carbon chain and a hydroxyl (OH) group attached. 2. When treated with sulfuric acid (H₂SO₄) and heated (represented by the triangle symbol, Δ), it undergoes a reaction that forms an intermediate compound, identified as compound A. 3. Compound A is then transformed through a series of reactions as follows: - Step 1: Reaction with element/compound (not specified in provided text). - Step 2: Reaction with an aldehyde (O=CH₂) in the presence of a hydronium ion (H₃O⁺), producing compound B. 4. The intermediate product (compound B) undergoes oxidation with Pyridinium Chlorochromate (PCC) in dichloromethane (CH₂Cl₂) under heating conditions (Δ) to form compound C. 5. Compound C is then chlorinated to form compound D. 6. Compound D is treated with sodium hydroxide (NaOH) to form an amine (NH₂) group, resulting in compound E. 7. Finally, Compound E undergoes methylation with iodomethane (CH₃I) and subsequent reaction with silver oxide (Ag₂O) in water under heating conditions (Δ), leading to the final product. **Diagram Explanation:** - The starting compound, a cyclopentane derivative, undergoes various reactions. - Reagents and conditions for each step include: - H₂SO₄ and Δ for the first transformation. - PCC, CH₂Cl₂, Δ for oxidation. - NaOH for converting a chloro derivative to an amine. - 3CH₃I and Ag₂O, H₂O, Δ for the final step. By analyzing each product and reagent involved, students are required to identify compounds A to E in this organic synthesis pathway.
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