Each of the three reactions below shows a Grignard reagent reacting with an unknown electrophile (1, 2 and 3) in the solvent diethyl ether to produce a product. All products are neutralized with HCl at the end of the reaction. Select the electrophiles from the list below that correspond to the reactions shown below: O Hold and drag to reorder (1) = i (2) = ii (3) = iv = v = vii = vi = ii
Analyzing Infrared Spectra
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IR Spectroscopy
Infrared (IR) or vibrational spectroscopy is a method used for analyzing the particle's vibratory transformations. This is one of the very popular spectroscopic approaches employed by inorganic as well as organic laboratories because it is helpful in evaluating and distinguishing the frameworks of the molecules. The infra-red spectroscopy process or procedure is carried out using a tool called an infrared spectrometer to obtain an infrared spectral (or spectrophotometer).
![### H14.7 - Level 3
**Status:** Unanswered • 3 attempts left
**Problem Statement:**
Each of the three reactions below shows a Grignard reagent reacting with an unknown electrophile (1, 2, and 3) in the solvent diethyl ether to produce a product. All products are neutralized with HCl at the end of the reaction. Select the electrophiles from the list below that correspond to the reactions shown below:
1. (1)
2. (2)
3. (3)
**Electrophiles List:**
- i.
- ii.
- iii.
- iv.
- v.
- vi.
- vii.
You can hold and drag the items to reorder them as per your response.
**Instructions:**
- Drag and match the electrophiles to the corresponding reactions 1, 2, and 3.
This exercise aims to test your understanding of Grignard reactions and electrophile identification. Make sure to review the reaction mechanisms to accurately determine the electrophiles involved.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F511780d2-fa54-4158-998d-d2ffdf1b0d76%2F9bc73005-877b-4c1c-84df-c3f1efdfcfb1%2F2am9aih_processed.jpeg&w=3840&q=75)
![### Understanding Grignard Reactions with Various Electrophiles
This educational graphic illustrates the reactivity of Grignard reagents with different electrophiles. There are three distinct reactions showcased, each using a Grignard reagent with a different electrophile, followed by a list of common electrophiles encountered in such reactions.
#### Detailed Breakdown of the Reactions
1. **Reaction 1**: Phenylmagnesium bromide (Ph-MgBr) reacts with acetone (CH₃-CO-CH₃) followed by the addition of hydrochloric acid (HCl) to yield 2-phenyl-2-propanol:
- **Reagents**:
- Grignard Reagent: Phenylmagnesium bromide (Ph-MgBr)
- Electrophile: Acetone (CH₃-CO-CH₃)
- **Procedure**:
- Step 1: React in diethyl ether (Et₂O).
- Step 2: Workup with hydrochloric acid (HCl).
- **Product**: 2-Phenyl-2-propanol
2. **Reaction 2**: Allylmagnesium bromide (CH₂=CH-CH₂-MgBr) reacts with formaldehyde (HCHO) followed by HCl to yield 4-penten-1-ol:
- **Reagents**:
- Grignard Reagent: Allylmagnesium bromide (CH₂=CH-CH₂-MgBr)
- Electrophile: Formaldehyde (HCHO)
- **Procedure**:
- Step 1: React in diethyl ether (Et₂O).
- Step 2: Workup with hydrochloric acid (HCl).
- **Product**: 4-Penten-1-ol
3. **Reaction 3**: Cyclohexylmagnesium bromide (C₆H₁₁-MgBr) reacts with deuterium oxide (D₂O) followed by HCl to yield cyclohexane-d:
- **Reagents**:
- Grignard Reagent: Cyclohexylmagnesium bromide (C₆H₁₁-MgBr)
- Electrophile: Deuterium oxide (D₂O), 2 equivalents
- **Procedure**:
- Step](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F511780d2-fa54-4158-998d-d2ffdf1b0d76%2F9bc73005-877b-4c1c-84df-c3f1efdfcfb1%2Fwur4t4g_processed.jpeg&w=3840&q=75)
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