The reduction product of ethyl 3-oxobutanoate | vedclass

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(C) $NaBH_4$ is a selective reducing agent that reduces ketones and aldehydes to alcohols but does not reduce esters under mild conditions. Ethyl $3$-

Vedclass · Accepted Answer

Ethyl $3$-hydroxybutanoate

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(C) $NaBH_4$ is a selective reducing agent that reduces ketones and aldehydes to alcohols but does not reduce esters under mild conditions. Ethyl $3$-oxobutanoate contains both a ketone group and an ester group. Therefore, $NaBH_4$ will selectively reduce the ketone group at the $C-3$ position to a hydroxyl group, while the ester group at the $C-1$ position remains unaffected. The reaction is: $CH_3COCH_2COOC_2H_5 \xrightarrow{NaBH_4, CH_3OH} CH_3CH(OH)CH_2COOC_2H_5$ Thus, the product is ethyl $3$-hydroxybutanoate.

The reduction product of ethyl $3$-oxobutanoate by $NaBH_4$ in methanol is

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