Common Alkyl Groups One carbon Two carbons Three carbons CH3 CH3- CH3-CH2- CH3-CH2一CH2- CH3-CH- methyl group ethyl group propyl group isopropyl group (or“n-propyl group") Four carbons CH3 CH3 CH3 CH3一CH2一CH2-CH2- CH3-CH-CH2- CH3-CH2一CH- CH3-C- butyl group isobutyl group sec-butyl group (or“n-butyl group'") CH3 tert-butyl group (or"t-butyl group") Copyright 2010 Pearson Prentice Hall,Inc Common Alkyl Groups