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Reaction Questions about Acyl Substitutions

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Please see the attached file.
1)
What is the order of increasing acidity for the following compound (least to most)?

2)
What is the order of decreasing reactivity towards nucleophilic acyl substitution for the carboxylic acid derivatives (most reactive first)?

3)
the reaction is described as a ___________ process
a) cationation
b) carbaniolation
c) carboxylation
d) carbonylation

4)

5)

6)

7) The product of the reaction is:
a) an ether
b) a lactam
c) an anhydride
d) a lactone

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Reaction Questions about Acyl Substitutions are solved and explained.

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1)
What is the order of increasing acidity for the following compound (least to most)?

Acidity: III < II < I < IV
Looking at the extremes...

The Cl compound and the unsubstituted benzoic acid are in between, but the Cl is electron withdrawing, so it will be more acidic.

2)
What is the ...

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