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Alkenes, reaction example, Reaction example, Reaction example, Reaction…
Alkenes
Alkene reactions
Addition
Halogenation
Reagents:
Conditions:
r.t.
Reaction example
+X2(aq) in CCl4 solvent
X=Cl,Br,I
Hydrohalogenation
Reagents:
Condition:
r.t.
Reaction example
HX(g)
X=Cl,Br,I
hydration
Reagents:
Conditions:
(2) heat
(1) r.t.
Reaction example
(2) + H2O(l)
(1) + concentrated H2SO4(aq)
Reagents:
Conditions:
heat to 350°C
Pressure 70atm
Reaction example
+H2O(g)/steam
Concentrated H3PO4(aq) catalyst
Addition polymerization
Reaction example
Hydrogenation
Reagents:
Conditions:
heat
Reaction example
Pt/Ni/Pd catalyst
+H2(g)
Oxidation
With cold dilute KMnO4(aq)
Reaction example
Combustion
complete
Reagents:
Conditions:
heat
Reaction example
+sufficient oxygen gas
Incomplete
Reagents:
Conditions:
heat
Reaction example
+insufficient oxygen gas
With hot concentrated KMnO4(aq)
Reaction example
Reaction example
Reaction example
reaction example
Condiitons:
Reagents:
Cracking
Alkene formation
Al2O3(s) catalyst
+Long alkane compound
Pressure of 70atm
Heat to 450°C-750°C
reaction in steel vacuum chamber
Reaction example
Conditions:
Reagents:
Dehydration of alcohols
Al2O3(s) catalyst
+Alcohol vapor
Heat applied to catalyst
Reaction example
Conditions:
Reagents:
Dehydrohalogenation
Halogenoalkane
+Alcoholic solution of KOH(aq)
Heat the mixture in reflux
Reaction example
Conditions:
Reagents:
+Alcohol
Concentrated H2SO4(aq) catalyst
Heat to 170°C
OR
OR