Practice Problem: Electrophilic Aromatic Substitution Retrosynthesis

The video tutorial explains how to synthesize a compound starting from benzene using electrophilic aromatic substitution. It discusses the use of Friedel Crafts alkylation to attach an alkyl group and nitration to attach a nitro group. The tutorial emphasizes the importance of understanding the directing abilities of these groups, with the alkyl group being an ortho para director and the nitro group a meta director. The correct order of reactions is crucial to achieve the desired ortho relationship between the substituents, leading to the successful synthesis of the target molecule.

What is the initial compound used to generate the target molecule in the problem?

• Toluene

• Benzene

• Phenol

• Aniline

Which reaction is used to attach an alkyl group to a benzene ring?

• Friedel-Crafts Alkylation

• Halogenation

• Sulfonation

• Nitration

What type of director is an alkyl group in electrophilic aromatic substitution?

• Ortho director only

• Ortho-para director

• Meta director

• Para director only

Why must the alkyl group be added before the nitro group in the reaction sequence?

• To prevent the formation of a para product

• To ensure the nitro group is added at the ortho position

• To increase the reaction rate

• To ensure the nitro group is added at the meta position

What would happen if the nitro group was added before the alkyl group?

• The nitro group would direct the alkyl group to the meta position

• The nitro group would direct the alkyl group to the ortho position

• The nitro group would not affect the position of the alkyl group

• The nitro group would direct the alkyl group to the para position