Naming Cycloalkanes

Fill-in the blank with the correct name for each structure

Rules for Naming Cycloalkanes


Cycloalkanes are ring structures with the general formula: CnH(2n). Following are basic rules for naming cycloalkanes.
1. Parent Chain

  1. Use the cycloalkane as the parent chain if it has a greater number of carbons than any alkylsubstituent.
  2. If an alkyl chain off the cycloalkane has a greater number of carbons, then use the alkyl chain as the parent and the cycloalkane as a cycloalkyl-substituent.

2. Numbering the Cycloalkane

  1. When numbering the carbons of a cycloalkane, start with a substituted carbon so that thesubstituted carbons have the lowest numbers (sum).

  2. When two or more different substituents are present, number according to alphabetical order.


3. Halogen Substituents

  1. Halogen substituents are treated exactly like alkyl groups