(1) The electrophilic addition of HBr to the alkene (3) gives rise to a bromoalkane product as shown in Figure 1. Draw the structure of the bromoalkane product. Draw the structure of the intermediate species leading to this product. Identify which step of the reaction is the fast step and which is the slow step. Using the curly arrow notation draw a mechanism for this reaction. Step 1 Step 2 Н-Br [ Intermediate Species ] + Bromoalkane (3)
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.
![(1)
(2)
The electrophilic addition of HBr to the alkene (3) gives rise to a bromoalkane
product as shown in Figure 1.
Draw the structure of the bromoalkane product.
Draw the structure of the intermediate species leading to this product.
• Identify which step of the reaction is the fast step and which is the slow
step.
Using the curly arrow notation draw a mechanism for this reaction.
Step 1
Step 2
Н-Br
[ Intermediate Species ]
+
Bromoalkane
(3)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb1d77bcb-5d4f-465d-a737-0a05b6133e13%2F25631158-0e43-4194-8119-738785b37cac%2Fhmpllsc_processed.png&w=3840&q=75)
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