Systematic Naming
Reactions
Additions of Hydrogen (Hydrogenation)
It converts an alkene to an alkane.
Addition of Halogens (Halogenation)
It converts an alkene to a dihaloalkane.
Test for unsaturation:
1. The purple permanganate solution changes from purple to colorless quickly when shaken with an alkene.
2. The brown bromine water is decolorized when shaken with an alkene.
Addition of Hydrogen Halide (Hydrohalogenation)
It converts an alkene to a haloalkane.
Markovnikov's rule (based on experimental findings): the hydrogen atom in HX is usually added to the carbon atom of the carbon-carbon double bond that already has the greater number of hydrogen atoms (多的越多).