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In the following reaction sequence, prod...

In the following reaction sequence, products I, J, and L are formed. `K` represents a reagent.

The structures of product `I` is :


The structures of compounds `J` and `K`, respectively, are :

The structure of product `L` is :

Text Solution

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The correct Answer is:
D
Unlike `LiA1H_4, NaBH_4` selectively reduces only `(-CHO)` group to `(-CH_2 OH)` group without affecting `(C-=C)` bond. On the other hand, `LAH` reduces `(-CHO)` group to `(-CH_2 OH)` group and `(C -= C)` bond to `(C = C)` bond in an anti manner.
`PBr_3` converts `(-OH)` group to `(-Br)` group.
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