Benzene and Its Derivatives - What Is the Mechanism of Electrophilic Aromatic Substitution?
16 important questions on Benzene and Its Derivatives - What Is the Mechanism of Electrophilic Aromatic Substitution?
In the chlorination of benzene by electrophilic aromatic substitution, how is the electrophile formed?
In the chlorination of benzene by electrophilic aromatic substitution, how does the chloronium ion react with benzene?
In the chlorination of benzene by electrophilic aromatic substitution, what is the last step in the reaction mechanism?
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For the sulfonation of a benzene by electrophilic aromatic substitution, how is the electrophile (sulfoniumion) formed?
The second step is the loss of water to form a sulfonium ion.
What is a Friedel-Crafts Alkylation?
What are the steps in the Friedel-Carfts Alkylation mechanism?
1. Formation of an electrophile
2. Reaction of a nucleophile and an electrophile
3. Removal of a proton
How is the electrophile formed in the Friedel-Crafts Alkylation mechanism?
After the formation of the electrophile in a Friedel-Crafts alkylation, how does the reaction continue?
What is the last step in the Friedel-Crafts Alkylation reaction mechanism?
What are the two major limitations on the Friedel-Crafts Alkylation?
2. It fails on benzene rings having one or more strongly electron drawing groups.
How do you determine whether a substituent on a benzene is electron withdrawing?
What is an acyl halide?
What is the difference between the Friedel-Crafts Alkylation and the Friedel-Crafts Acylation?
How is the electrophile formed in the Friedel-Crafts Acylation?
Since the Friedel-Crafts Alkylation and Acylation are dependent on the generation of a carbocation, what other treatment are there to generate carbocations?
2. By treating alcohol with H2SO4 or H3PO4.
What is the difference between addition to an alkene and electrophilic aromatic substitution?
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