Question

write the iupac name of ​

Answer 1

Answer:

IUPAC name is 4,5 - dimethyl - hex - 2 - ene .

Explanation:

We have bond line structure.

• We will write it's condensed formula for writing IUPAC name .

It's Condensed structural formula is given in attachment.

Steps how we have write the IUPAC name :

Step 1 :

First we have selected the longest carbon parent chain. [See in attachment ]

Step 2 :

We have done the numbering of chain from that end, from which multiple bonds [Can be double bond and triple bond] come first. (See in attachment)

Step 3 :

Then we know rule of writting IUPAC name that is :

Prefixes (For side chain) + Root word (For parent chain) + Primary suffixes (-ane, -ene and -yne)

Here, there are two side chains of methyl attached to the fourth and fifth carbons of parent chain.

So, Prefix is 4,5 dimethyl [There are two methyl so we can say it dimethyl ]

The parent chain consists of six carbon atoms :

So, Root word is Hex .

Now,

In this, there is a double bond on second and third carbon atom. We will write number of first occurred carbon atom of double bond.

So, P. Suffixe is 2 - ene

Now, Add them :

→ 4,5 - dimethyl - hex - 2 - ene .

Thus,

IUPAC name is 4,5 - dimethyl - hex - 2 - ene .