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The molecular orbital involved in the interaction of the oxime shown below, with a base is

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CSIR-UGC (NET) Chemical Science: Held on (16 Feb 2022)
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  1. σ* of O‐H
  2. σ* of C‐H
  3. σ of O‐H
  4. σ of C‐H

Answer (Detailed Solution Below)

Option 1 : σ* of O‐H
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Detailed Solution

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Explanation: 

The base will extract the  Hydrogen from the oxygen because of the electronegativity difference between oxygen and hydrogen.

The reaction will occur as follows: 

Let's see the diagrammatic presentation of oxygen molecular orbitals:

As this can be easily seen from the molecular orbital diagram, the electron of hydrogen will be in the 2sσ* orbital of O-H.

Hence, the correct option is 1.

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