. Name the reagents used in the following reactions.


Name the reagents used in the following reactions.

            (i)    Oxidation of a primary alcohol to carboxylic acid.

            (ii)   Oxidation of a primary alcohol to aldehyde.

            (iii)   Bromination of phenol to 2, 4, 6-tribromophenol.

            (iv)  Benzyl alcohol to benzoic acid.

            (v)   Dehydration of propan-2-ol to propene.

            (vi)  Butan-2-one to butan-2-ol.

 

Best Answer

(i)        Acidified K2Cr2O7 or neutral/acidic/alkaline KMnO4.

            (ii)   Pyridine chlorochromate (PCC) (C5H5N+ HCl CrO3­–) in CH2Cl2

            (iii)  Bromine water (Br2/H2O).

            (iv)  Alkaline KMnO4 or acidified KMnO4

            (v)   85% H3PO4 at 440 K>

            (vi)  LiAlH4 or NaBH4

 

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