Definitions Conjugated double bonds are separated by one single bond.Example:1,3-pentadiene. Isolated double bonds are separated by two or more single bonds.Example:1,4- pentadiene. Cumulated double bonds are on adjacent carbons.Example:1,2-pentadiene. => Chaper 15Chaper 15 2 Definitions • Conjugated double bonds are separated by one single bond. Example: 1,3-pentadiene. • Isolated double bonds are separated by two or more single bonds. Example: 1,4- pentadiene. • Cumulated double bonds are on adjacent carbons. Example: 1,2-pentadiene. =>