20. Draw a DETAILED arrow-pushing mechanisms for the following transformation; include resonance forms, lone pair of electrons, and formal charges. ( LËr. EtÖH .. :OEt

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**Question 20: Draw a DETAILED arrow-pushing mechanism for the following transformation; include resonance forms, lone pair of electrons, and formal charges.**

The diagram shows a chemical reaction involving molecules represented in skeletal structures. 

**Reactants:**
1. A bromine (Br) atom attached to a secondary carbon, with a lone pair and a formal negative charge.
2. Ethanol (EtOH), with a lone pair on the oxygen.

**Products:**
1. An ethyl group (OEt) attached to a secondary carbon, with a lone pair on the oxygen.

**Explanation:**

In the given transformation, the bromine atom is displaced by the ethyl group from ethanol, leading to the formation of the product. During this reaction, the lone pair on the oxygen of ethanol attacks the secondary carbon, resulting in the displacement of the bromine. This is a typical nucleophilic substitution reaction. Arrow-pushing should depict these electron movements clearly, showing the conversion of reactants into products with formal charges and lone pairs noted.
Transcribed Image Text:**Question 20: Draw a DETAILED arrow-pushing mechanism for the following transformation; include resonance forms, lone pair of electrons, and formal charges.** The diagram shows a chemical reaction involving molecules represented in skeletal structures. **Reactants:** 1. A bromine (Br) atom attached to a secondary carbon, with a lone pair and a formal negative charge. 2. Ethanol (EtOH), with a lone pair on the oxygen. **Products:** 1. An ethyl group (OEt) attached to a secondary carbon, with a lone pair on the oxygen. **Explanation:** In the given transformation, the bromine atom is displaced by the ethyl group from ethanol, leading to the formation of the product. During this reaction, the lone pair on the oxygen of ethanol attacks the secondary carbon, resulting in the displacement of the bromine. This is a typical nucleophilic substitution reaction. Arrow-pushing should depict these electron movements clearly, showing the conversion of reactants into products with formal charges and lone pairs noted.
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