Identify the correct reagents that would bring about hydroboration–oxidation followed by oxidation to aldehyde:

Options

1. (i) BH₃ (ii) H₂O₂/OH⁻ (iii) PCC
2. (i) BH₃ (ii) H₂O₃ (iii) alk KMnO₄
3. (i) H₂O/H⁺ (ii) PCC
4. (i) H₂O/H⁺ (ii) CrO₃

Correct Answer

(i) BH₃ (ii) H₂O₂/OH⁻ (iii) PCC

Explanation

Hydroboration–oxidation gives alcohol, which is then oxidized by PCC to an aldehyde.

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