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JEE Advanced2008ChemistryAlcohols Phenols and EthersActual

Paragraph: In the following reaction sequence, product I . J and L are formed. K represent a reagent Question: The structure of the product I is

Correct answer

3

Step-by-step solution

NaBH ₄ reduces - CHO selectively into - CH ₂ OH , which is further converted into corresponding bromide by PBr ₃ without affecting the triple bond.

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