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the nucleophilic addition of carbonyl is catalysed by an acid.why?

the nucleophilic addition of carbonyl is catalysed by an acid.why?

Grade:Upto college level

2 Answers

GAURAV SINGH
askIITians Faculty 36 Points
10 years ago
Because addition of acid increases the positive charge density on carbonyl carbon, due to reaction becomes fast. Even weak nucleophile will be able to the addition reaction then on that carbonyl .

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Gaurav Singh
askIITians Faculty
Pranjal K
23 Points
10 years ago
Nucleophillic addition reactions can be of 2 types: Acid catalysed and base catalysed. The acid is often the proton. In these reactions the conjugate acid of the carbonyl group is a better electrophile than the neutral carbonyl group itself. Thus making the attack of any type of nucleoplhile easy.

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