Oxidation of an alkyne to the corresponding carbonyl compound is catalysed by

Options

A. `PdCl_(2)`
B. `TiCl_(4)`
C. `MnO`
D. `TiO`

Answer

To determine the catalyst for the oxidation of an alkyne to the corresponding carbonyl compound, we can follow these steps:

### Step-by-Step Solution:

1. **Understanding the Reaction**:
- The oxidation of an alkyne involves converting the triple bond in the alkyne to a carbonyl compound, which can be an aldehyde or a ketone depending on the structure of the alkyne.

2. **Identifying the Catalysts**:
- We are given four options: PdCl2, TiCl4, MnO, and TiO. We need to evaluate which of these catalysts is commonly used for the oxidation of alkynes.

3. **Analyzing Each Catalyst**:
- **PdCl2 (Palladium(II) chloride)**: This is known to catalyze the oxidation of alkynes to carbonyl compounds. It facilitates the addition of oxygen across the triple bond.
- **TiCl4 (Titanium(IV) chloride)**: This is primarily used in other types of reactions, not specifically for the oxidation of alkynes.
- **MnO (Manganese(II) oxide)**: While manganese compounds can be used in oxidation reactions, they are not typically used specifically for the oxidation of alkynes to carbonyl compounds.
- **TiO (Titanium(IV) oxide)**: This is generally not used as a catalyst for the oxidation of alkynes.

4. **Selecting the Correct Catalyst**:
- Based on the analysis, PdCl2 is the most suitable catalyst for the oxidation of alkynes to carbonyl compounds.

5. **Conclusion**:
- Therefore, the correct answer to the question is **PdCl2**.

### Final Answer:
The oxidation of an alkyne to the corresponding carbonyl compound is catalyzed by **PdCl2**.