The IUPAC name of Br-CH_2-CH(CONH_2)-CO-CH_2- | vedclass

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Question

(A) $1$. Identify the principal functional group: The amide group $(-CONH_2)$ has higher priority than the ketone group $(-CO-)$ and the halide $(-Br)

Vedclass · Accepted Answer

$2-$(Bromomethyl)$-3-$oxopentanamide

Vedclass · Answer

(A) $1$. Identify the principal functional group: The amide group $(-CONH_2)$ has higher priority than the ketone group $(-CO-)$ and the halide $(-Br)$. Thus,the parent chain is an amide.$2$. Number the chain starting from the amide carbon as $C-1$: $C-1$ is the carbon of $-CONH_2$,$C-2$ is the carbon attached to the amide,$C-3$ is the ketone carbon,$C-4$ is the next carbon,and $C-5$ is the terminal carbon.$3$. The structure is $Br-CH_2-CH(CONH_2)-CO-CH_2-CH_3$. The longest chain containing the amide and ketone is a $5-$carbon chain (pentanamide).$4$. At $C-2$,there is a substituent group: $Br-CH_2-$ which is a bromomethyl group.$5$. At $C-3$,there is a ketone group,which is named as an oxo substituent.$6$. Combining these,the name is $2-$(Bromomethyl)$-3-$oxopentanamide.

The $IUPAC$ name of $Br-CH_2-CH(CONH_2)-CO-CH_2-CH_3$ is

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