Predict the correct intermediate and product in the following reaction:

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🧠 The Keto-Enol Shuffle
Adding water to an alkyne in the presence of  and  (Kucherov's reaction) follows Markovnikov's rule. But the immediate product is a "temporary" enol that quickly morphs into a more stable ketone.

🗺️ The Reaction Sequence
1. The Substrate:  (Propyne).
2. Intermediate (A): Water adds across the triple bond. Following Markovnikov's rule, the  goes to the middle Carbon.
    (Prop-1-en-2-ol)
3. Product (B): This enol is unstable. The hydrogen migrates to the terminal carbon

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