Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in a Grignard synthesis of the alcohol shown. CH3 CH3CCH₂CH3 ÓH
Reactions of Ethers
Ethers (R-O-R’) are compounds formed by replacing hydrogen atoms of an alcohol (R-OH compound) or a phenol (C6H5OH) by an aryl/ acyl group (functional group after removing single hydrogen from an aromatic ring). In this section, reaction, preparation and behavior of ethers are discussed in the context of organic chemistry.
Epoxides
Epoxides are a special class of cyclic ethers which are an important functional group in organic chemistry and generate reactive centers due to their unusual high reactivity. Due to their high reactivity, epoxides are considered to be toxic and mutagenic.
Williamson Ether Synthesis
An organic reaction in which an organohalide and a deprotonated alcohol forms ether is known as Williamson ether synthesis. Alexander Williamson developed the Williamson ether synthesis in 1850. The formation of ether in this synthesis is an SN2 reaction.
![**Exercise:**
Draw structural formulas for an aldehyde or ketone and alkyl (or aryl) bromide that could be used in a Grignard synthesis of the alcohol shown.
**Alcohol Structure:**
The structural formula for the alcohol is given as follows:
```
CH₃
|
CH₃CCH₂CH₃
|
OH
```
**Explanation for Educational Context:**
In this exercise, you are tasked with identifying possible aldehyde or ketone and alkyl bromide combinations that can be used to synthesize the given alcohol using a Grignard reaction. The structure shows a tertiary alcohol which is typically produced by Grignard reagents reacting with ketones.
- The central carbon (C) in the structure is attached to a hydroxyl group (OH), a methyl group (CH₃), an ethyl group (CH₂CH₃), and another methyl group (CH₃).
**Grignard Reaction Overview:**
Grignard reagents (R-Mg-X, where R is an alkyl or aryl group and X is a halogen such as bromine) react with carbonyl compounds to form alcohols. In this case, you need to determine a compatible carbonyl compound (aldehyde or ketone) and Grignard reagent derived from an alkyl bromide that would yield the shown tertiary alcohol.
To determine the correct combination:
1. Identify the carbonyl compound that correspond to the skeleton of the alcohol without the hydroxyl group.
2. Identify the alkyl bromide that can form the Grignard reagent adding to the carbonyl compound in the appropriate manner to yield the desired alcohol.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F89d20bf7-5284-426d-a0f1-0ea4150b8e2e%2Fa4d1ac00-615d-474a-aa2d-1ecf1ed5e65d%2Fm00rwxt_processed.png&w=3840&q=75)
![](/static/compass_v2/shared-icons/check-mark.png)
Alkyl bromide react with Mg in ether medium to produce Grignard reagent.
Grignard reagent react with ketone compound to produce tertiary alcohol product.
Step by step
Solved in 3 steps with 1 images
![Blurred answer](/static/compass_v2/solution-images/blurred-answer.jpg)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781305957404/9781305957404_smallCoverImage.gif)
![Chemistry](https://www.bartleby.com/isbn_cover_images/9781259911156/9781259911156_smallCoverImage.gif)
![Principles of Instrumental Analysis](https://www.bartleby.com/isbn_cover_images/9781305577213/9781305577213_smallCoverImage.gif)
![Organic Chemistry](https://www.bartleby.com/isbn_cover_images/9780078021558/9780078021558_smallCoverImage.gif)
![Chemistry: Principles and Reactions](https://www.bartleby.com/isbn_cover_images/9781305079373/9781305079373_smallCoverImage.gif)
![Elementary Principles of Chemical Processes, Bind…](https://www.bartleby.com/isbn_cover_images/9781118431221/9781118431221_smallCoverImage.gif)