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(C) The reagent $AlH(i-Bu)_2$ is known as $DIBAL-H$ (Diisobutylaluminium hydride).It is a selective reducing agent that reduces nitriles $(R-C \equiv

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$RCHO$

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(C) The reagent $AlH(i-Bu)_2$ is known as $DIBAL-H$ (Diisobutylaluminium hydride).It is a selective reducing agent that reduces nitriles $(R-C \equiv N)$ to imines,which upon subsequent hydrolysis with $H_2O$ yield aldehydes $(RCHO)$.The reaction mechanism involves the nucleophilic attack of the hydride from $DIBAL-H$ onto the carbon of the nitrile group,followed by hydrolysis of the resulting imine intermediate to form the aldehyde.

The major product of the following reaction is
$R-C \equiv N \xrightarrow[(2) \ H_2O]{(1) \ AlH(i-Bu)_2} ?$

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The major product of the following reaction is$R-C \equiv N \xrightarrow[(2) \ H_2O]{(1) \ AlH(i-Bu)_2} ?$