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Complete the following reactions: und...

Complete the following reactions:
`underset((N))("Propane nitrile") underset((ii)H_(3)O^(o+))overset((i) PhMgBr)(rarr)(O) underset(HCl)overset(Zn-Hg)(rarr)(P)`

Text Solution

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To complete the reactions involving propane nitrile, we will follow the steps outlined in the video transcript. Here is a step-by-step text solution: ### Step 1: Reaction with Grignard Reagent 1. **Starting Material**: Propane nitrile (CH₃CH₂CH₂C≡N). 2. **Reagent**: Phenylmagnesium bromide (PhMgBr). 3. **Mechanism**: The nucleophilic carbon of the Grignard reagent (Ph⁻) attacks the electrophilic carbon of the nitrile group (C≡N). 4. **Intermediate Formation**: This results in the formation of an intermediate where the triple bond (C≡N) is converted to a double bond (C=O) with a negative charge on the carbon (R-C(=N)-Ph). 5. **Resulting Structure**: The intermediate can be represented as R-C(=N)-Ph, where R is the propane chain (CH₃CH₂CH₂-). ...
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