Organic Reactions Flashcards
Complete Combustion of alkanes
Produces carbon dioxide and water
Incomplete combustion of alkanes
Produces carbon dioxide, water and carbon monoxide
Reaction of alkanes with Chlorine
Free Radical Substitution Mechanism -
Initiation: Cl2–>Cl. + Cl.
Propagation: Cl. + C2H6 –> C2H5. + HCl
C2H5. + Cl2 —> C2H5Cl + Cl.
Termination: Cl. + Cl. —> Cl2
C2H5. + Cl. —> C2H5Cl
Addition of hydrogen to Alkenes with a Nickel Catalyst
(150 degrees C) Produces Alkanes.
Addition of halogens to Alkenes (ethene)
Electrophilic Addition Mechanism
C2H4 + Cl2 —> C2H4Cl2
Addition of hydrogen halides to Alkenes (ethene)
Electrophilic Addition Mechanism
C2H4 + HCl —> C2H5Cl
Addition of hyrdogen halides to propene
Unsymmetrical Electrophilic Addition Mechanism
TWO PRODUCTS
C3H6 + HCl —> C3H7Cl (1-chloropropane)
OR
C2H4 + HCl —> C2H5Cl (2-chloropropane) - more likely
Oxidation of Alkenes using potassium manganate
C2H4 + [O] (+ sulphuric acid) —> C2H6O2 (Diol)
Reaction with Bromine Water
C2H4 + BrOH —> C2H5BrO (bromoethanol)
Addition polymerisation of Alkenes
Double bond of alkene broken, only 2 carbons in the backbone, any other alkyl groups go above or below, brackets round repeating unit and bonds from each carbon go through their respective bracket.
Combustion of Alcohols
C2H6O + 302 —> 2CO2 + 3H20
Reaction of Alcohols with Sodium
C2H6O + 2Na —> C2H5O-Na+ (ionic sodium ethoxide) + H2
Substitution of Alcohols to form halogenoalkanes
Tertiary: C2H60 + HCl —> C2H5Cl + H20
Primary and Secondary: C2H60 + PBr3 —> 3C2H5Br + H3PO3
Oxidation of primary Alcohols to form aldehydes and carboxylic acid.
Distillation:
C2H6O + [O] + H2SO4 —> C2H4O (Ethanal) + H2O
Reflux:
C2H60 + [O] + H2SO4 —> C2H402 + H20
Oxidation of secondary alcohols to form Ketones
C3H8O + [O] + H2SO4 —> C3H6O + H2O