E. J. Corey used the following reaction in a synthesis of thromboxane B2. Draw the product of step 3. 1. LDA, THF, -25°C 2. 3. H2О / THF

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Chapter1: Chemical Foundations
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**E. J. Corey used the following reaction in a synthesis of thromboxane B₂. Draw the product of step 3.**

**Reaction Details:**

A chemical reaction involving a sulfur-containing compound begins with an azepane ring and several hydrocarbon chains. This reaction undergoes several steps, ultimately leading to a different compound in a synthesis pathway. Specific agents and conditions include:

1. **Reagents and Conditions:**
   - **1st step:** 
     - Reagent: LDA (Lithium Diisopropylamide)
     - Solvent: THF (Tetrahydrofuran)
     - Temperature: -25°C
   - **2nd step:**
     - Introduces a compound with an ester group attached to a cyclohexane ring.
   - **3rd step:**
     - Involves the addition of water (H₂O) in THF.

**Instructions:**

- Draw all enolates in their carbanion form.
- You do not have to consider stereochemistry.

The reaction appears to involve enolate formation using LDA, a common strong base for deprotonating carbonyl compounds, followed by reaction with an ester-bearing cyclohexane, and then hydrolysis in the final step.
Transcribed Image Text:**E. J. Corey used the following reaction in a synthesis of thromboxane B₂. Draw the product of step 3.** **Reaction Details:** A chemical reaction involving a sulfur-containing compound begins with an azepane ring and several hydrocarbon chains. This reaction undergoes several steps, ultimately leading to a different compound in a synthesis pathway. Specific agents and conditions include: 1. **Reagents and Conditions:** - **1st step:** - Reagent: LDA (Lithium Diisopropylamide) - Solvent: THF (Tetrahydrofuran) - Temperature: -25°C - **2nd step:** - Introduces a compound with an ester group attached to a cyclohexane ring. - **3rd step:** - Involves the addition of water (H₂O) in THF. **Instructions:** - Draw all enolates in their carbanion form. - You do not have to consider stereochemistry. The reaction appears to involve enolate formation using LDA, a common strong base for deprotonating carbonyl compounds, followed by reaction with an ester-bearing cyclohexane, and then hydrolysis in the final step.
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