ine is a foul-smelling compound, and yet the acetyl derivatives shown below have
ID: 694841 • Letter: I
Question
ine is a foul-smelling compound, and yet the acetyl derivatives shown below have a very smell of popcorn. The first one, in particular, is widely used as a flavoring pleasant aroma -the agent. Use your knowledge of electrophilic substitution to supply the reaction below, and then predict which isomer is formed ?22? or 7. Many polymers that contain benzene rings have poor solubility and very high melting temperatures, making them difficult to process. The addition of tert-butyl groups can yield a polymer that is easier to purify and mold, and then later the tert-butyl group can be removed by treatment with acid, as shown in the model reaction below. Provide a mechanism for this reaction. Explain why tert-butyl groups lower the melting point for polymers. cat. H+Explanation / Answer
Answer
a) Acetyl chloride (CH3-CO-Cl) is the reagent. The electrophile formed is CH3-CO+. Second is the major product formed in the reaction
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