CH_3C –CH_2CH_3 (I) X CH _3–C(=O)–C(=O)–CH_3 (a 1,2-diketone). The reagent X is

JEE Main Chemistry question

CHCC–CHCH–C(=O)–C(=O)–CH (a 1,2-diketone). The reagent is

(A)HNO
(B)O
(C)OCorrect
(D)KMnO

Answer: (C)

Solution

Ozone followed by a mild (non-reductive, non-hydrolytic-with-Zn) oxidative workup on an internal alkyne can stop at the 1,2-diketone stage rather than cleaving fully to two separate

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Question ID VK-142443