5/1 Notes – Alkenes and Alkynes

 

  1. Unsaturated Hydrocarbons

            A.        Alkenes

                        1.         Def – having double carbon-carbon bond/s

                        2.         Naming

                                    Change – ane to – ene

                                    Two double bonds would be -diene

                                    Three double bonds would be –triene

B.        Alkynes

                        1.         Def – having triple carbon-carbon bond/s

                        2.         Naming

                                    Change – ane to – yne

                                    Two triple bonds would be -diyne

3.                  Examples

           

Drawing out

                                    3-ethyl-2-pentene

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                                    2,3-dimethyl-2-hexene

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                                    1-butyne

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