Specify the reagent you would use in each step of the following synthesis: a. LiAIH4 b. H₂SO4 c. HCI d. HBr e. SOCI2 step 1 step 2 Reagents Available j. CH3MgBr CI f. PBr3 k. CH3CH₂MgBr g. Dess-Martin periodinane (DMP) I. C6H5MgBr h. NaH i. NaOH (phenylmagnesium bromide) m. (CH3)2CHMgBr n. CrO3

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### Synthesis Problem

**Objective:** Specify the reagent you would use in each step of the following synthesis.

#### Chemical Reaction Overview:

- **Starting Material:** A ketone with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to the carbonyl carbon.

- **Step 1:** Converts the ketone to an intermediate.

- **Step 2:** The intermediate undergoes a chemical transformation to yield the final product, which contains a chlorine (Cl) atom and a phenyl group (C₆H₅) attached to the original carbon chain.

#### Reagents Available:

a. LiAlH₄  
b. H₂SO₄  
c. HCl  
d. HBr  
e. SOCl₂  
f. PBr₃  
g. Dess-Martin periodinane (DMP)  
h. NaH  
i. NaOH  
j. CH₃MgBr  
k. CH₃CH₂MgBr  
l. C₆H₅MgBr (phenylmagnesium bromide)  
m. (CH₃)₂CHMgBr  
n. CrO₃  

### Instructions:

- **Write the letters of the reagents in the boxes below.**

**Reagent for step 1:** [  ]

**Reagent for step 2:** [  ]

#### Explanation:

1. **Step 1** likely involves converting the ketone functional group using one of the reagents above.
2. **Step 2** involves introducing a chlorine atom and a phenyl group, suggesting the usage of a reagent capable of adding these specific functional groups.

Please select the appropriate reagents based on the chemical transformations needed for each step.
Transcribed Image Text:### Synthesis Problem **Objective:** Specify the reagent you would use in each step of the following synthesis. #### Chemical Reaction Overview: - **Starting Material:** A ketone with a methyl group (CH₃) and an ethyl group (CH₂CH₃) attached to the carbonyl carbon. - **Step 1:** Converts the ketone to an intermediate. - **Step 2:** The intermediate undergoes a chemical transformation to yield the final product, which contains a chlorine (Cl) atom and a phenyl group (C₆H₅) attached to the original carbon chain. #### Reagents Available: a. LiAlH₄ b. H₂SO₄ c. HCl d. HBr e. SOCl₂ f. PBr₃ g. Dess-Martin periodinane (DMP) h. NaH i. NaOH j. CH₃MgBr k. CH₃CH₂MgBr l. C₆H₅MgBr (phenylmagnesium bromide) m. (CH₃)₂CHMgBr n. CrO₃ ### Instructions: - **Write the letters of the reagents in the boxes below.** **Reagent for step 1:** [ ] **Reagent for step 2:** [ ] #### Explanation: 1. **Step 1** likely involves converting the ketone functional group using one of the reagents above. 2. **Step 2** involves introducing a chlorine atom and a phenyl group, suggesting the usage of a reagent capable of adding these specific functional groups. Please select the appropriate reagents based on the chemical transformations needed for each step.
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