Alkane nomenclature - 1 | Alkanes

Organic Chemistry 1 - Alkane nomenclature - 1

1) Name the following molecule:

2) Draw the 3-ethyl-5-methyl-4-propylheptane.

3) What is the relationship between the two previous compounds?

1)  3,4-diethyl-2,5-dimethylheptane


a) The longest continuons chain of C atoms: 7  ⇒ heptane

b) Green chain: 3 substituents; Blue chain: 4 substituents ⇒Blue chain is the main chain

c) Number the C atoms of the longest chain in order to get the smallest Σ




3)  The chemical formula for the two compound is C13H28; therefore these two molecules are constitutional isomers.