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Question

Which is the most appropriate reagent for the following oxidation reaction?
CH3CH=CHCH2OHCH3CH=CHCOOH

A
KMnO4/H2SO4
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B
KMnO4/NaOH
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C
CrO3/HCl/Pyridine
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D
CrO3/Acetone/H2O
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Solution

The correct option is C CrO3/Acetone/H2O
Because acyclic ketones are relatively stable to Cr(VI) oxidations, acetone is frequently used as the solvent for Cr(VI) oxidations of alcohols. In these reactions, a CrO3/H2SO4/H2O mixture is slowly added to an acetone solution of the alcohol, or the alcohol is mixed with an acetone solution of CrO3/H2SO4/H2O.

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