Q. 12.19 - An Introduction to General, Organic, and Biological Chemistry

Question

Give IUPAC name for each of the following.

Step-by-Step Solution

Answer

(a) IUPAC name is Propenal .

(b) IUPAC name is $2 methylpent 3-one$ .

(c) IUPAC name is  $3,4 dimethylcyclohexenone$.

(d) IUPAC name is  $2 bromo benzaldehyde$. 

Part (a) Step 1: Given Information

We need to find the IUPAC name of the compound.

Part (a) Step 2: Explanation

We are given a compound in which $-CHO$ group is present and we know that it is higher Preference group that's why counting start from this group side .

Therefore, IUPAC name is $propanal$.

Part (b) Step 1: Given Information

We need to find the IUPAC name of the compound.

Part (b) Step 2: Explanation

We are given a compound in which $C=O$group is present . then we should take a long chain and Ensure that $-CHO$group is near.  that's why counting will start from right part  Therefore , the IUPAC name is $2 methyl pent -3-one$

Part (c) Step 1: Given Information

We need to find the IUPAC name of the compound. 

Part (c) Step 2: Explanation

We are given a compound in which $C=O$group is present and we know that it is higher preference than other groups that's why counting is start from this group carbon that's why the IUPAC name is $3,4 dimethyl cyclohexenon$.

Part (d) Step 1: Given Information

We need to find the IUPAC name of the compound. 

Part (d) Step 2: Explanation

We are given a compound in which $-CHO$group is present and that group is higher preference in this compound and counting will start from this. that's why the IUPAC name is $2 Bromo benzaldehyde.$