7. Provide structures for the major organic products of each of the following reactions. Be careful to indicate product stereochemistry when necessary. a. OH OH X Br OH OH PBr3 HBr (excess) CH3CH₂MgBr, ether HI
7. Provide structures for the major organic products of each of the following reactions. Be careful to indicate product stereochemistry when necessary. a. OH OH X Br OH OH PBr3 HBr (excess) CH3CH₂MgBr, ether HI
Chemistry
10th Edition
ISBN:9781305957404
Author:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Publisher:Steven S. Zumdahl, Susan A. Zumdahl, Donald J. DeCoste
Chapter1: Chemical Foundations
Section: Chapter Questions
Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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Concept explainers
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.
Question
![### Major Organic Product Structures of Reactions
**Question 7:** Provide structures for the major organic products of each of the following reactions. Be careful to indicate product stereochemistry when necessary.
#### a.
**Reactant:**
\[
\begin{array}{c}
\ce{OH} \\
\ce{|} \\
\ce{HO-CH2-CH2-CH2-CH3}
\end{array}
\]
**Reagent:**
\(\ce{PBr3}\)
**Diagram:**
The structure depicted in the diagram is a linear alcohol reacting with phosphorus tribromide (PBr3).
#### b.
**Reactant:**
\[
\begin{array}{c}
\ce{OH} \\
\ce{|} \\
\ce{HO-CH2-CH2-CH}
\end{array}
\]
**Reagent:**
\(\ce{HBr} \text{(excess)}\)
**Diagram:**
The structure depicted in the diagram is a linear diol (with two hydroxyl groups) reacting with excess hydrobromic acid (HBr).
#### c.
**Reactant:**
\[
\begin{array}{c}
\ce{Br} \\
\ce{|} \\
\ce{CH3-CH-CH2-CH2-CH3}
\end{array}
\]
**Reagent:**
\(\ce{CH3CH2MgBr}, \text{ether}\)
**Diagram:**
This diagram illustrates an alkyl bromide reagent reacting with an ethylmagnesium bromide (Grignard reagent) in the presence of ether.
#### d.
**Reactant:**
\[
\begin{array}{c}
\ce{O} \\
\ce{|} \\
\ce{\ \ \ \CH2-CH3-CH2}\\
\hline
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\end{array}
\]
**Reagent:**
\(\ce{HI}\)
**Diagram:**
This diagram shows an ether compound reacting with hydroiodic acid (HI).
---
**Note:** This educational content explains the structures and reagents involved in each organic reaction. Students are encouraged to draw the resulting major organic products, taking into account any changes in stereochemistry.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fec6645f6-c9f1-4d46-852d-b6863d878e66%2F3cc2bcee-4f15-47bd-ab13-cceac73b0156%2Fkyr8b0b_processed.jpeg&w=3840&q=75)
Transcribed Image Text:### Major Organic Product Structures of Reactions
**Question 7:** Provide structures for the major organic products of each of the following reactions. Be careful to indicate product stereochemistry when necessary.
#### a.
**Reactant:**
\[
\begin{array}{c}
\ce{OH} \\
\ce{|} \\
\ce{HO-CH2-CH2-CH2-CH3}
\end{array}
\]
**Reagent:**
\(\ce{PBr3}\)
**Diagram:**
The structure depicted in the diagram is a linear alcohol reacting with phosphorus tribromide (PBr3).
#### b.
**Reactant:**
\[
\begin{array}{c}
\ce{OH} \\
\ce{|} \\
\ce{HO-CH2-CH2-CH}
\end{array}
\]
**Reagent:**
\(\ce{HBr} \text{(excess)}\)
**Diagram:**
The structure depicted in the diagram is a linear diol (with two hydroxyl groups) reacting with excess hydrobromic acid (HBr).
#### c.
**Reactant:**
\[
\begin{array}{c}
\ce{Br} \\
\ce{|} \\
\ce{CH3-CH-CH2-CH2-CH3}
\end{array}
\]
**Reagent:**
\(\ce{CH3CH2MgBr}, \text{ether}\)
**Diagram:**
This diagram illustrates an alkyl bromide reagent reacting with an ethylmagnesium bromide (Grignard reagent) in the presence of ether.
#### d.
**Reactant:**
\[
\begin{array}{c}
\ce{O} \\
\ce{|} \\
\ce{\ \ \ \CH2-CH3-CH2}\\
\hline
\ \ \ \ \ \ \ \ \ \ \ \ \ \ \
\end{array}
\]
**Reagent:**
\(\ce{HI}\)
**Diagram:**
This diagram shows an ether compound reacting with hydroiodic acid (HI).
---
**Note:** This educational content explains the structures and reagents involved in each organic reaction. Students are encouraged to draw the resulting major organic products, taking into account any changes in stereochemistry.
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