Question

Draw 3 -ethylhexanoic acid. Draw the structure in line-bond form.

Answer 1

Concepts and reason

The concept used to solve this problem is to draw the structural formula of 3 -ethylhexanoic acid.

In the IUPAC or International Union of Pure and Applied Chemistry system; systematic names are given to all organic compounds.

The most importance feature of this system is that any given molecular structure has only one IUPAC name and any given IUPAC name denotes only one molecular structure.

Fundamentals

Carboxylic acid: Carboxylic acids contain the characteristic functional group.

In the I.U.P.A.C. Nomenclature System, carboxylic acids are named according to the following set of rules:

(i)To write the IUPAC name first determine longest chain with carboxylic group. It is parent compound.

(ii)In the second step of name, give the number to carbon chain which is started from carboxylic carbon.

(iii)For carboxylic acid use oic acid as suffix which is used by replace the –e ending of the parent alkane with the suffix-oic acid.

(iv)For carboxyl groups, the suffix –dioic acid is used.

(v)The name and number of other substituents of carboxylic acid in the usual way.

The given carboxylic acid is 3-ethylhexanoic acid, in which ethyl is present as substituent on position 3.

The parent acid is hexanoic acid means there are 6 carbon atoms present in straight chain of acid as follows:

The structure of ethyl group is as follows:

The structural formula of 3 -ethylhexanoic acid is as follows:

Ans:

Thus; the structural formula of 3-ethylhexanoic acid is as follows: