Rule 3:Naming Alkyl Groups Alkane name Alkyl name CH4 methane -CHs methyl group CHgCH3 ethane -CH2CH3 ethyl group CHgCH2CH3 propane -CH2CH2CH3 propyl group CHgCH2CH2CH3 butane -CH2CH2CH2CH3 butyl group CH3CH2CH2CH2CH3 pentane -CH2CH2CH2CH2CH3 pentyl group 2013 Pearson Education,Inc. Chapter 3 15 © 2013 Pearson Education, Inc. Rule 3: Naming Alkyl Groups Alkane name Alkyl name CH4 methane –CH3 methyl group CH3CH3 ethane –CH2CH3 ethyl group CH3CH2CH3 propane –CH2CH2CH3 propyl group CH3CH2CH2CH3 butane –CH2CH2CH2CH3 butyl group CH3CH2CH2CH2CH3 pentane –CH2CH2CH2CH2CH3 pentyl group Chapter 3 15