What is the IUPAC name of the compound CH_3-C | vedclass

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(C) $1$. Identify the longest carbon chain containing the double bond. The structure is $CH_3-C(CH_2CH_3)=CHCH_3$. $2$. The longest chain has $5$ carb

Vedclass · Accepted Answer

$3-$methylpent$-2-$ene

Vedclass · Answer

(C) $1$. Identify the longest carbon chain containing the double bond. The structure is $CH_3-C(CH_2CH_3)=CHCH_3$. $2$. The longest chain has $5$ carbon atoms,so the parent alkane is pentane. $3$. Number the chain from the end closer to the double bond: $C_1H_3-C_2(C_2H_5)=C_3H-C_4H_2-C_5H_3$ is incorrect; the correct numbering is $CH_3(1)-C(2)(C_2H_5)=CH(3)-CH_2(4)-CH_3(5)$ is not right. $4$. Let's re-examine: $CH_3-C(CH_2CH_3)=CH-CH_3$. The longest chain is $5$ carbons long. Numbering from right to left: $CH_3(1)-CH(2)=C(3)(CH_2CH_3)-CH_3(4)$ is wrong. $5$. Correct numbering: $CH_3(1)-CH(2)=C(3)(CH_2CH_3)-CH_3$ is not it. The structure is $CH_3-C(CH_2CH_3)=CH-CH_3$. The longest chain is $CH_3-C(=CH-CH_3)-CH_2-CH_3$. This is a $5$-carbon chain. $6$. Numbering: $CH_3(1)-CH(2)=C(3)(CH_3)-CH_2(4)-CH_3(5)$ is wrong. The structure is $CH_3-C(C_2H_5)=CH-CH_3$. The longest chain is $CH_3-CH_2-C(CH_3)=CH-CH_3$. This is $3-$methylpent$-2-$ene.

What is the $IUPAC$ name of the compound $CH_3-C(C_2H_5)=CHCH_3$?

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