Question

What is the IUPAC name of the following compound?
\[{H_3}C - O - C{(C{H_3})_2} - C{H_3}\]
A) \[2 - Methoxy{\text{ }}propane\]
B) \[2 - Methoxy{\text{ }}methyl\]
C) \[2 - Methoxy - 2 - methylpropane\]
D) \[2 - Methylpropane - 2 - methoxy\]

Answer 1

Hint: We need to know that the full form of IUPAC is the International Union of Pure and Applied Chemistry. It is a World Wide organisation for the nomenclature of the new elements in the periodic table and chemical molecules. The IUPAC has certain rules and regulations for the naming of the organic compound. In that method only we named the organic molecules in World level. The naming of any organic molecule depends on the parent saturated hydrocarbon.

Complete answer:
The given structure is
\[{H_3}C - O - C{(C{H_3})_2} - C{H_3}\]
The rules for naming structure is,
First to calculate the number of carbon atoms in the given ring structure. According to that count we consider our parent hydrocarbon.
There are three carbon atoms in the chain that contain long chain bonds in the molecule.
Hence the parent name of the molecule is propane. Because three carbon atoms in the chain contain a long chain bond in the molecule.
Methoxy and methyl are the substituent in the given structure. Both the substituent are in the second carbon atom in the molecule.
Hence, the IUPAC name of the given molecule is \[2 - Methoxy - 2 - methylpropane\].
According to the above discussion, we conclude the IUPAC name of the given molecule is \[2 - Methoxy - 2 - methylpropane\].

Hence, the option C is the correct answer.

Note:
We have to know that the functional group of the molecule is very important for the naming time. If one molecule having more than one functional group means some priority list is also provided from IUPAC. If the number of substituent and functional group is dependent on the minimum number will come from the left side or right of the terminal carbon atom in the chain. If it is a cyclic structure it depends on the number we choose clockwise numbering or anti-clockwise numbering in the structure. The main chain is dependent on the large number carbon atom chain in the molecule.