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Problems and exercisesNomenclature

1. Name the compounds

Name the following compounds:

Eight alkenes to name: a) tetrasubstituted alkene with ethyl, propyl and two methyl groups; b) dimethylcyclopentene; c) diene with two methyl groups; d) tert-butylcyclohexene; e) isopropylmethylcyclohexene; f) terminal alkene with methyl and ethyl; g) methylcycloheptene; h) trimethylcyclopentene

2. Write the structure

  1. (Z)-3-Methylpent-2-ene
  2. trans-1,2-Dichloroethene
  3. 3-Ethylpenta-1,4-diene
  4. 2-Methyl-1-methylidenecyclohexane

3. E or Z?

Say which group has priority on each carbon of the double bond and what the Z isomer looks like for: a) CH3CH2C(CH3)=CHCH3; b) BrCH=C(Cl)CH3; c) (CH3)2CHC(CH2OH)=CHCH3.

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