CH3 CHCH2 CH2CH-CHCH3 CHCHCH-CHCH2CH 6 5 4 3 21 1 23 456 2-Hexene 2-Methyl-3-hexene CH3CH2 H 2C=C1 CH3 CH.CH2CH2 H 543 H.G-C-CH-CH2 3 2-Ethyl-1-pentene 2-Methyl-1,3-butadiene @2004 Thomson-Brooks/Cole
Cyclic alkenes CH3 6 CH3 1-Methylcyclohexene 1,4-Cyclohexadiene 1,5-Dimethylcyclopentene C2004 Thomson-Brooks/Cole
Cyclic alkenes
Alkyl Groups with -Bonds H2C安 H2C-CH H2C=CH一CH2之 A methylene group C2004 Thomson-Brooks/Cole A vinyl group An allyl group CH-CH2 a vinyl group CH2CH-CH2 (or ethenyl) 人an allyl group (or 2-propenyl) Br cis 1-bromo-3-vinyl cyclohexane 4-allyl cyclopentene a phenyl group 3-phenyl-1-nonene
Alkyl Groups with p-Bonds CH=CH2 Br cis 1-bromo-3-vinyl cyclohexane a vinyl group CH2 CH=CH2 4-allyl cyclopentene (or ethenyl) an allyl group (or 2-propenyl) a phenyl group 3-phenyl -1-nonene
Alkylidene Groups Double Bonds Fused to Rings CH2 二CHCH3 me thyle ne cyclohexane ethylide ne cyclope ntane
Alkylidene Groups Double Bonds Fused to Rings CH2 methylene cyclohexane CHCH3 ethylidene cyclopentane
Polyenes CH,-CH-CH-CH2 CH,-CH-CH-CH-CH-CH-CH2 IUPAC names: 1.3-butadiene 1.3.5-heptatriene 1.3.5.7-cyclooctatetraene new IUPAC names: buta-1,3-diene hepta-1.3.5-triene cycloocta-1,3.5.7-tetraene
Polyenes