Consider the reaction between an alcohol and tosyl chloride, followed by a nucleophile. Write the condensed formula of the expected main organic product. 1. TSCI.pyridine CH,CH,OH 2. CI

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**Educational Resource:**

### Reaction of Alcohol with Tosyl Chloride and a Nucleophile

**Reaction Overview:**

The following chemical reaction involves an alcohol reacting with tosyl chloride (TsCl) in the presence of pyridine, followed by the addition of a nucleophile. The task is to determine the condensed formula of the expected main organic product.

**Chemical Reaction:**

- **Reactant:** Ethanol (\( \text{CH}_3\text{CH}_2\text{OH} \))
- **Reagents:**
  1. Tosyl Chloride (TsCl), Pyridine
  2. Chloride ion (\(\text{Cl}^-\))

**Explanation:**

1. **Step 1:** The hydroxyl group (\(-\text{OH}\)) in ethanol is converted to a tosylate group (\(-\text{OTs}\)) using tosyl chloride in the presence of pyridine. This reaction transforms the alcohol into a good leaving group.

2. **Step 2:** The tosylate group is then displaced by a nucleophile, in this case, the chloride ion (\(\text{Cl}^-\)), leading to the formation of chloroethane (\( \text{CH}_3\text{CH}_2\text{Cl} \)).

**Condensed Formula of the Expected Product:**
- Main Organic Product: **Chloroethane (\( \text{CH}_3\text{CH}_2\text{Cl} \))** 

This reaction showcases a nucleophilic substitution mechanism where the hydroxyl group of an alcohol is replaced by a halogen via a tosylate intermediate.
Transcribed Image Text:**Educational Resource:** ### Reaction of Alcohol with Tosyl Chloride and a Nucleophile **Reaction Overview:** The following chemical reaction involves an alcohol reacting with tosyl chloride (TsCl) in the presence of pyridine, followed by the addition of a nucleophile. The task is to determine the condensed formula of the expected main organic product. **Chemical Reaction:** - **Reactant:** Ethanol (\( \text{CH}_3\text{CH}_2\text{OH} \)) - **Reagents:** 1. Tosyl Chloride (TsCl), Pyridine 2. Chloride ion (\(\text{Cl}^-\)) **Explanation:** 1. **Step 1:** The hydroxyl group (\(-\text{OH}\)) in ethanol is converted to a tosylate group (\(-\text{OTs}\)) using tosyl chloride in the presence of pyridine. This reaction transforms the alcohol into a good leaving group. 2. **Step 2:** The tosylate group is then displaced by a nucleophile, in this case, the chloride ion (\(\text{Cl}^-\)), leading to the formation of chloroethane (\( \text{CH}_3\text{CH}_2\text{Cl} \)). **Condensed Formula of the Expected Product:** - Main Organic Product: **Chloroethane (\( \text{CH}_3\text{CH}_2\text{Cl} \))** This reaction showcases a nucleophilic substitution mechanism where the hydroxyl group of an alcohol is replaced by a halogen via a tosylate intermediate.
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