Which alcohol cannot be oxidised by MnO_2?

JEE Main Chemistry question

Which alcohol cannot be oxidised by ?

(A)CH_2{=}CH-CH_2CH_2OH (saturated-chain primary/allylic alcohol, oxidised)
(B)CH_3-CH{=}CH-CH_2OH (allylic alcohol, oxidised)
(C) (benzylic alcohol, oxidised)
(D)Cyclohexanol (a simple, non-allylic/non-benzylic secondary alcohol)Correct

Answer: (D)

Solution

is a mild, selective oxidant that oxidises only allylic and benzylic alcohols (where the developing radical/cation character during oxidation is resonance-stabilised by an adjacent C=C or aromatic

See the full step-by-step solution

Create a free account to read the complete working, and practise questions like this in a timed test.

Create a free account

Question ID VK-148589