Alkene ReactionsSlide 21. Hydrogenation ReactionSlide 4Slide 52. Halogenation ReactionSlide 7Unsymmetrical Addition Reactions3. Halogenation ReactionSlide 104. Hydration ReactionSlide 125. Polymerization ReactionSlide 14Slide 15Slide 16Slide 17Alkene Reactions•Addition Reactions - only one product•1. Hydrogenation (H2): Alkene + Hydrogen --> Alkane•2. Halogenation (X2):Alkene + diatomic halogen --> Dihaloalkane•3. Halgenation (HX):Alkene + HX --> Haloalkane•4. Hydration (HOH):Alkene + HOH --> alcohol•5. Polymerization:Many alkenes add together into a long alkane chainAlkene Reactions1. Hydrogenation Reaction•Alkene + Hydrogen --> Alkane•Hydrogen molecule adds to carbons with double bond.CH2HCH3C+H2CHCH3CHHH HH HCH3H2CH3CCCH3CHHHHHCCAlkene ReactionsAlkene Reactions2. Halogenation Reaction•Alkene + Halogen --> Dihaloalkane•Halogen molecule adds to carbons with double bond.CH2HCH3CCHCH3CHHCC+ Br2Br BrCH2CHH3CBrBrCCH3CHBrBrHHAlkene ReactionsUnsymmetrical Addition Reactions•Markovnikov’s Rule•For double bonds that have unequal numbers of hydrogen atoms attached.•For unsymmetrical reactants such as HX and HOH•The hydrogen of the reactant goes to the carbon of the double bond that already has the most hydrogen atoms. “the rich get richer”•The -X or the -OH go the other carbon (the one with the least amount of hydrogen3. Halogenation Reaction•Alkene + HX --> haloalkane•HCl molecule adds to carbons with double bond.CH2HCH3CCHCH3CHHCC+ HClHClH3CCH CH3ClCCH3CHHHHClMark's RuleAlkene Reactions4. Hydration Reaction•Alkene + HOH --> alcohol•HOH molecule adds to carbons with double bond.CH2HCH3CCHCH3CHHCCMark's Rule+HOHHOHH3CCH CH3HOCCH3CHHHHOHAlkene Reactions5. Polymerization Reaction•Alkene + Alkene + Alkene --> long chain of carbons•Double bonds convert to single bondsC CHHHHC CHHHHC CHHHHC CHHHHC CHHHHC CHHHHCH2H2CCH2H2CCH2H2CC CHHHHC CHHHHC CHHHH............Alkene ReactionsWhat is the structure forAlkene ReactionsAlkene ReactionsAlkene
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