k) 1) E n) + HBr + BH3. THF + CH3CH3CH₂COOOH + Br₂ R-O-O-R o) 2 CH3CH₂CH₂OH + 2 Na Lindlar's catalyst A

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The image features a chemistry homework assignment titled "CHEM HOMEWORK.pdf." It seems to be from a PDF opened in a browser, specifically page 5 of 6. Below is the transcription and detailed explanation of the content as it would appear on an educational website.

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### Organic Reaction Mechanisms

**Question Set**

1. **Cyclopentane Reaction with Hydrobromic Acid (HBr)**

   a) \( \text{Cyclopentene} \) + \( \text{HBr} \) \[R-O-O-R\] → 

      In this reaction, cyclopentene reacts with hydrobromic acid with the presence of a peroxide initiator (R-O-O-R). This condition usually implies a free radical addition reaction leading to anti-Markovnikov addition of HBr.

2. **Hydroboration-Oxidation Reaction**

   b) \( \text{Cyclopentene} \) + \( \text{BH}_3, \text{THF} \) →

      Cyclopentene reacts with borane (BH3) in THF (tetrahydrofuran) solvent. This is indicative of a hydroboration-oxidation reaction.

3. **Epoxidation Reaction**

   c) \( \text{Cyclopentene} \) + \( \text{CH}_3\text{CH}_2\text{CH}_2\text{COOOH} \) →

      Cyclopentene reacts with peroxypropionic acid (CH3CH2CH2COOOH) suggesting an epoxidation reaction.

4. **Halogenation Reaction**

   d) \( \text{Cyclopentene} \) + \( \text{Br}_2 \) →

      Cyclopentene undergoes a reaction with bromine (Br2), indicative of an electrophilic addition reaction resulting in a vicinal dibromide.

5. **Partial Hydrogenation Reaction**

   e) \( \text{Alkyne compound} \) \[Lindlar's catalyst\] →

      An alkyne compound reacts in the presence of Lindlar's catalyst which usually suggests a partial hydrogenation reaction leading to a cis-alkene.

6. **Sodium Metal Reaction with Alcohols**

   f) \( \text{2 CH}_3\text{CH}_2\text{CH}_2\text{OH}
Transcribed Image Text:The image features a chemistry homework assignment titled "CHEM HOMEWORK.pdf." It seems to be from a PDF opened in a browser, specifically page 5 of 6. Below is the transcription and detailed explanation of the content as it would appear on an educational website. --- ### Organic Reaction Mechanisms **Question Set** 1. **Cyclopentane Reaction with Hydrobromic Acid (HBr)** a) \( \text{Cyclopentene} \) + \( \text{HBr} \) \[R-O-O-R\] → In this reaction, cyclopentene reacts with hydrobromic acid with the presence of a peroxide initiator (R-O-O-R). This condition usually implies a free radical addition reaction leading to anti-Markovnikov addition of HBr. 2. **Hydroboration-Oxidation Reaction** b) \( \text{Cyclopentene} \) + \( \text{BH}_3, \text{THF} \) → Cyclopentene reacts with borane (BH3) in THF (tetrahydrofuran) solvent. This is indicative of a hydroboration-oxidation reaction. 3. **Epoxidation Reaction** c) \( \text{Cyclopentene} \) + \( \text{CH}_3\text{CH}_2\text{CH}_2\text{COOOH} \) → Cyclopentene reacts with peroxypropionic acid (CH3CH2CH2COOOH) suggesting an epoxidation reaction. 4. **Halogenation Reaction** d) \( \text{Cyclopentene} \) + \( \text{Br}_2 \) → Cyclopentene undergoes a reaction with bromine (Br2), indicative of an electrophilic addition reaction resulting in a vicinal dibromide. 5. **Partial Hydrogenation Reaction** e) \( \text{Alkyne compound} \) \[Lindlar's catalyst\] → An alkyne compound reacts in the presence of Lindlar's catalyst which usually suggests a partial hydrogenation reaction leading to a cis-alkene. 6. **Sodium Metal Reaction with Alcohols** f) \( \text{2 CH}_3\text{CH}_2\text{CH}_2\text{OH}
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