When benzene reacts with acetyl chloride (CH3COCl) in the presence of AlCl3, acetophenone is formed. The electrophile in this reaction will be:
Correct answer: A. CH3CO+
- A. CH3CO+
- B. AlCl3
- C. CH3+
- D. CH3COCl
Explanation
CH3COCl reacts with AlCl3 to form ----> AlCl4- and CH3CO+CH3CO+ has a positive charge thus it is an electrophile and attracted to nucleophiles i.e. negative charges.
This question appeared on the UHS MDCAT 2017 paper, which you can sit online with every answer explained.
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About Benzene and Aromatic Compounds
Benzene has a planar ring of delocalised π electrons, giving aromatic stability and equal carbon-carbon bond lengths. The topic covers resonance, electrophilic substitution reactions such as nitration, halogenation, sulphonation and Friedel-Crafts reactions, along with substituent effects and the distinction between substitution in benzene and addition in ordinary alkenes.
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