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Question

(C) The given compound is $CH_3-CO-CH(CH_3)-CH_2-CH_2-Cl$. To name this compound according to $IUPAC$ rules,we first identify the longest carbon chain

Vedclass · Accepted Answer

$5-$chloro$-3-$methyl$-2-$pentanone

Vedclass · Answer

(C) The given compound is $CH_3-CO-CH(CH_3)-CH_2-CH_2-Cl$. To name this compound according to $IUPAC$ rules,we first identify the longest carbon chain containing the principal functional group,which is the ketone group. The numbering starts from the end that gives the ketone group the lowest possible locant. Numbering from the left gives the ketone at position $2$. The chain has $5$ carbons,so the parent alkane is pentane,and the ketone is pentan$-2-$one. There is a methyl group at position $3$ and a chloro group at position $5$. Combining these,the correct $IUPAC$ name is $5-$chloro$-3-$methylpentan$-2-$one or $5-$chloro$-3-$methyl$-2-$pentanone.

The $IUPAC$ name for the compound is

Similar Questions

Which of the following $IUPAC$ names is correct for the structure:
$CH_3-CH(CH_3)-CH_2-CH_2-CH_2-CH(CH_2-CH_2-CH_3)-CH_2-CH_3$?
$(i)$ $2-$methyl$-6-$ethylnonane
$(ii)$ $6-$ethyl$-2-$methylnonane
$(iii)$ $4-$ethyl$-8-$methylnonane

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The structure of the compound whose $IUPAC$ name is $3-$ethyl$-2-$hydroxy$-4-$methylhex$-3-$en$-5-$ynoic acid is:

The $IUPAC$ name of the given compound is:

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