Friedel-Crafts acylations are best carried out with acyl halides, but other carb

Question

Friedel-Crafts acylations are best carried out with acyl halides, but other carboxylic acid derivatives undergo this process, too, such as carboxylic anhydrides or esters. These reagents may have some drawbacks, however, which you will discover here.

If you work in a group, you may wish to discus the formation of acylium ions from acyl halides. Then, analyze the following reactions and predict the products using the molecular formulas and the NMR spectral data. Give the structures for compounds A

Explanation / Answer

A - CHO-CH2--benzene

B- CH3-CH2-BENZENE-CH2-CH3

C-   CH3-CH2-BENZENE

D CHO-CH2-CH2-CH2-BENZENE

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