InterviewSolution
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InterviewSolution
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Name the reagents used in the following reactions: i. Oxidation of a primary alcohol to carboxylic acid. ii. Oxidation of a primary alchol to aldehyde. iii. Bromination of phenol to 2,4,6-tribromonophenol. iv. Benzyl alcohol to benzoic acid. v. Dehydration of propan-2-ol to propene. vi. Butan-2-one to butan-2-ol. |
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Answer» i. Acidified postassium dichromate or netural, acidic, or alkaline potassium permanganate. ii. Pyridinium chlorochromate (PCC). `overset (C_(5)H_(5)N^(o+)HCICrCO_(3)^(-)) underset (dichromate(PDC))`, in `CH_(2)CI_(2)` or Pyridinium `(C_(5)H_(5)N^(o+)H)_(2)Cr_(2)O_(7)^(2-)` in `CH_(2)CI_(2)` . iii. Aqueous bromine, i.e., `Br_(2)//H_(2)O`. iv. Acidifield or alkaline potassium permanganate. v. Conc. `H_(2)SO_(4)` at `433-443` K or `85%` phosphoric acid at 443K. vi. `Ni//H_(2)` or `NaBH_(4)` or `LiAIH_(4)` |
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