Alkyl Halide Nomenclature

For each of the compounds on the left, give an acceptable IUPAC name.
Click the mouse on the molecule to view the answer;

click on the button to view the correct numbering sequence.

1-chloro-3-ethylhexane

There are two possible six-carbon chains in the molecule, and you select the one bearing the halogen, to give the greatest number of substituents.

E-1,2-dibromocyclohexane

The two bromines are both equatorial (trans), making the stereochemistry E.

1-chloromethyl-2-methylcyclohexane

The cyclohexane ring is the parent chain; the chain is numbered beginning with the chloromethyl group (alphabetical) and proceeding in the direction to give the lowest number sequence.