Grignard reagents do not give carbonyl compou | vedclass

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Question

(D) Grignard reagents $(R'MgX)$ react with various carbonyl compounds to form alcohols or ketones depending on the substrate.$1$. Reaction with $CO_2$

Vedclass · Accepted Answer

$RCOOR$

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(D) Grignard reagents $(R'MgX)$ react with various carbonyl compounds to form alcohols or ketones depending on the substrate.$1$. Reaction with $CO_2$ yields a carboxylic acid $(R'COOH)$.$2$. Reaction with $RCOCl$ (acid chloride) yields a ketone $(R'COR)$,which is a carbonyl compound.$3$. Reaction with $RCN$ (nitrile) yields an imine intermediate,which upon hydrolysis gives a ketone $(R'COR)$,a carbonyl compound.$4$. Reaction with $RCOOR$ (ester) yields a tertiary alcohol $(R'_2C(OH)R'')$ after two equivalents of Grignard reagent react,which is not a carbonyl compound.However,among the given options,$CO_2$ reacts to form a carboxylic acid,which contains a carbonyl group $(C=O)$. The reaction with esters $(RCOOR)$ typically leads to tertiary alcohols,which do not contain a carbonyl group. Thus,$RCOOR$ is the correct choice as it does not result in a carbonyl compound product.

Grignard reagents do not give carbonyl compounds with :

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