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Author Question: What is the role of AlCl3 in Friedel Crafts acylations using acid chlorides? a. Lewis acid b. ... (Read 136 times)

faduma

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on: Aug 23, 2018
What is the role of AlCl3 in Friedel Crafts acylations using acid chlorides?
 a. Lewis acid
  b. electrophile
  c. base
  d. nucleophile

Question 2

What is the electrophile in the reaction of benzene with tert-butyl chloride and AlCl3?
 a. CH3+
  b. Cl+
  c. (CH3)C+
  d. benzene

Question 3

What is the electrophile in the reaction of benzene with acetyl chloride, CH3COCl, and AlCl3?
 a. CH3CO+
  b. CH3+
  c. CH3CO2
  d. benzene

Question 4

What is the electrophile in the reaction of benzene with a mixture of nitric acid and sulfuric acid?
 a. HONO
  b. NO+
  c. NO2+
  d. benzene

Question 5

Why are nitrophenols more acidic than phenols?


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dlook33

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Reply #1 on: Aug 23, 2018
Answer to Question 1

a

Answer to Question 2

c

Answer to Question 3

a

Answer to Question 4

b

Answer to Question 5

Nitro phenols are more acidic than phenols because of the electron-withdrawing inductive effect of the NO2 group. Also, the negative charge of the phenoxide ion on the ortho and para positions of nitrophenol is delocalized onto the oxygen atom of the NO2 group, thus making it more stable and acidic.


faduma

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Reply #2 on: Aug 23, 2018
Thank you!


dlook33

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Reply #3 on: Aug 23, 2018
Always glad to help...


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