Specify the reagent you would use in each step of the following synthesis: a. LIAIHA b. H₂SO4 c. HCI d. HBr e. SOCI₂ step 1 Reagents Available 1. PBr3 9 pyridinium step 2 chlorochromate (PCC) h. NaH i. NaOH 1. CH₂MgBr ➤ CI k. CH CH₂MgBr LCH MgBr (phenylmagnesium bromide) m. (CH₂)₂CHMgBr n. CrO₂ Write the letters of the reagents in the boxes below. Reagent for step 1 Reagent for step 2

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### Organic Synthesis Problem

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

\[ \text{(structure 1)} \xrightarrow{\text{step 1}} \text{(structure 2)} \xrightarrow{\text{step 2}} \text{(structure 3)} \]

**Reagents Available:**

- a. LiAlH₄
- b. H₂SO₄
- c. HCl
- d. HBr
- e. SOCl₂
- f. PBr₃
- g. pyridinium chlorochromate (PCC)
- h. NaH
- i. NaOH
- j. CH₃MgBr
- k. CH₃-CH₂MgBr
- l. C₆H₅MgBr (phenylmagnesium bromide)
- m. (CH₃)₂CHMgBr
- n. CrO₃

#### Instructions:

Write the letters of the reagents in the boxes below.

**Reagent for step 1:**
\[ \boxed{\text{ }} \]

**Reagent for step 2:**
\[ \boxed{\text{ }} \]

### Analysis of Structures and Reactions

**Diagram Explanation:**

This problem presents a two-step organic synthesis sequence. The initial compound (structure 1) undergoes a chemical transformation in step 1 to form an intermediate compound (structure 2). Subsequently, structure 2 undergoes another reaction in step 2 producing the final compound (structure 3).

**Step-by-Step Approach:**

1. **Step 1:**
    - Identify the functional groups and their transformations.
    - Choose the appropriate reagent for the desired transformation (reduction, oxidation, substitution, etc.).

2. **Step 2:**
    - Understand the functional modifications required on structure 2.
    - Select the reagent that facilitates the conversion to the final structure (grignard reaction, halogenation, etc.).

Considering typical organic synthesis routes and common reactions, fill in the respective reagent letters based on the available options provided.
Transcribed Image Text:### Organic Synthesis Problem Specify the reagent you would use in each step of the following synthesis: \[ \text{(structure 1)} \xrightarrow{\text{step 1}} \text{(structure 2)} \xrightarrow{\text{step 2}} \text{(structure 3)} \] **Reagents Available:** - a. LiAlH₄ - b. H₂SO₄ - c. HCl - d. HBr - e. SOCl₂ - f. PBr₃ - g. pyridinium chlorochromate (PCC) - h. NaH - i. NaOH - j. CH₃MgBr - k. CH₃-CH₂MgBr - l. C₆H₅MgBr (phenylmagnesium bromide) - m. (CH₃)₂CHMgBr - n. CrO₃ #### Instructions: Write the letters of the reagents in the boxes below. **Reagent for step 1:** \[ \boxed{\text{ }} \] **Reagent for step 2:** \[ \boxed{\text{ }} \] ### Analysis of Structures and Reactions **Diagram Explanation:** This problem presents a two-step organic synthesis sequence. The initial compound (structure 1) undergoes a chemical transformation in step 1 to form an intermediate compound (structure 2). Subsequently, structure 2 undergoes another reaction in step 2 producing the final compound (structure 3). **Step-by-Step Approach:** 1. **Step 1:** - Identify the functional groups and their transformations. - Choose the appropriate reagent for the desired transformation (reduction, oxidation, substitution, etc.). 2. **Step 2:** - Understand the functional modifications required on structure 2. - Select the reagent that facilitates the conversion to the final structure (grignard reaction, halogenation, etc.). Considering typical organic synthesis routes and common reactions, fill in the respective reagent letters based on the available options provided.
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