H O: (+ H. :0:

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Chapter1: Chemical Foundations
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Problem 1RQ: Define and explain the differences between the following terms. a. law and theory b. theory and...
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What type of mechanistic step is illustrated below?

  • proton transfer
  • loss of a leaving group
  • nucleophilic attack
  • rearrangement
The image depicts a chemical reaction mechanism involving protonation of a carbonyl group. 

On the left, a carbonyl group is illustrated with a central carbon atom double-bonded to an oxygen atom (C=O), with two lone pairs of electrons shown on the oxygen. This group is part of a larger molecule, with two other bonds extending from the carbon atom.

An arrow is shown moving from one of the lone pairs on the oxygen to a hydrogen ion (H⁺), indicating the oxygen atom is forming a coordinate covalent bond with the hydrogen ion. This is a typical representation of a proton transfer in organic chemistry.

On the right, the resulting structure shows the oxygen now bonded to a hydrogen atom. The oxygen atom carries a positive charge, reflecting the extra proton it has acquired, disrupting the balance of its electron pairs.

This process describes a common acid-base reaction where the carbonyl oxygen acts as a Lewis base, accepting a proton to form a protonated carbonyl.
Transcribed Image Text:The image depicts a chemical reaction mechanism involving protonation of a carbonyl group. On the left, a carbonyl group is illustrated with a central carbon atom double-bonded to an oxygen atom (C=O), with two lone pairs of electrons shown on the oxygen. This group is part of a larger molecule, with two other bonds extending from the carbon atom. An arrow is shown moving from one of the lone pairs on the oxygen to a hydrogen ion (H⁺), indicating the oxygen atom is forming a coordinate covalent bond with the hydrogen ion. This is a typical representation of a proton transfer in organic chemistry. On the right, the resulting structure shows the oxygen now bonded to a hydrogen atom. The oxygen atom carries a positive charge, reflecting the extra proton it has acquired, disrupting the balance of its electron pairs. This process describes a common acid-base reaction where the carbonyl oxygen acts as a Lewis base, accepting a proton to form a protonated carbonyl.
Expert Solution
Step 1

Carbonyl carbon  is electrophilic in given compound.

Nucleophile is electron rich containg either lone pair of electron or negative charge .

During rearrangement bond breaking or bond making or group transfer occur .

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