Naming of Alkenes Step 1:Name the parent hydrocarbon-Find longest continuous carbon chain containing the C=C CHCH2 H CH:CH2 H C=C C=C CH2CH2CH2 H CHCH2CH2 H Named as a pentene NOT as a hexene,since the double bond is not contained in the six-carbon chain C2004 Thomson-Brooks/Cole Step 2:Number carbons in chain so that double bond carbons and substituents have lowest possible numbers CH3 CHCH,CH2CH-CHCH3 CH CHCH-CHCH2CH 20o4Tmson- 21 1 23 45 6 Naming of Alkenes „ Step 1: Name the parent hydrocarbon - Find longest continuous carbon chain containing the C=C „ Step 2: Number carbons in chain so that double bond carbons and substituents have lowest possible numbers