What is the IUPAC name of the given compound?
1,3 propandioic acid diethyl ester
It is the diethyl ester of malonic acid, and it is used in the malonic synthesis of carboxylic acids.
The Preferred IUPAC Name (PIN) is diethyl propanedioate.
Step 1. Identify the highest priority functional group
This compound is an ester.
Step 2. Write the name of the ester
Esters are alkyl alkanoates.
(a) Name the alkyl group.
ethane - ane + yl → ethyl
b) Name the acid portion of the ester
This is a three-carbon acid.
propanoic acid - oic acid + oate → propanoate
There are two ester groups. We use the multiplying prefix di-.
The PIN of the ester is diethyl propanedioate.
The IUPAC retains the common name malonic acid, so diethyl malonate an acceptable (but not preferred) name.