The IUPAC name of the compound having structu | vedclass

Name: Exam Paper Generator | JEE NEET Paper Generator | Vedclass
Brand: Vedclass
Rating: 5 (35 reviews)

Question

(B) The given structure is $C_2H_5-C(=CH_2)-CH(CH_3)-CH_3$. To find the $IUPAC$ name,we first identify the longest carbon chain containing the double

Vedclass · Accepted Answer

$2-$ethyl$-3-$methylbut$-1-$ene

Vedclass · Answer

(B) The given structure is $C_2H_5-C(=CH_2)-CH(CH_3)-CH_3$. To find the $IUPAC$ name,we first identify the longest carbon chain containing the double bond. The longest chain has $5$ carbon atoms,so the parent alkane is pentene. Numbering the chain from the end closer to the double bond gives the double bond at position $1$. The structure is $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$. Numbering from the right: $C_5H_3-C_4H_2-C_3(=CH_2)-C_2H(CH_3)-C_1H_3$ is incorrect. Correct numbering: $CH_3(5)-CH_2(4)-C(3)(=CH_2(1))-CH(CH_3)(2)-CH_3(1)$ is not right. Let's re-examine the longest chain: $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$. The longest chain is $5$ carbons long: $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$. Numbering to give the double bond the lowest locant: $CH_3(5)-CH_2(4)-C(3)(=CH_2(1))-CH(CH_3)(2)-CH_3(1)$ is wrong. The longest chain is $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$ which is $2-$ethyl$-3-$methylbut$-1-$ene. Wait,the longest chain is $5$ carbons: $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$. Actually,the longest chain is $5$ carbons: $CH_3-CH_2-C(=CH_2)-CH(CH_3)-CH_3$. The correct $IUPAC$ name is $2-$ethyl$-3-$methylbut$-1-$ene.

The $IUPAC$ name of the compound having structure $C_2H_5-C(=CH_2)-CH(CH_3)-CH_3$ is

Similar Questions

The $IUPAC$ name of the compound shown in the image is:

The $IUPAC$ name of the following structure $CH_3-CH(CH_3)-CO-CH_2-CH_2OH$ is

Which functional group from the following is considered as the principal functional group if a polyfunctional compound is to be named by the $IUPAC$ system?

What is the correct $IUPAC$ name of the following structure?

The $IUPAC$ name of $CH_2=CH-CH_2-COOH$ is

Vedclass Test Series

Exam Paper Generator

Online Exam Module