Point 2 of 5 — Lesson 2: Unsaturated Hydrocarbons – Alkenes (Olefins)Question bank: 1 questions (1 with pictures)
02Nomenclature
Take the longest chaincontaining the double bond; replace-ane by -ene.
Number from the endnearer the double bond (whatever other groups there are), and put the number of the first carbon of the double bond before the name.
Substituents are named and numbered as for alkanes.
Examples: CH₂=CH–CH₃ propene; CH₃–CH=CH–CH₂–CH₃2-pentene; CH₂=CH–CH(CH₃)–CH₂–CH₃3-methyl-1-pentene; CH₂=CH–CH₂–CH₂Cl is4-chloro-1-butene; (CH₃)₂C=CH₂ 2-methylpropene (isobutene). The common name of ethene is ethylene.
📝 Question bank for this point
1 questions linked to this point only, 1 of them with pictures.
