ORGANIC CHEMISTRY Chapter 10 10. 3 The reactions of alkanes with Halogens Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 10 10.3 The Reactions of Alkanes with Halogens
ORGANIC CHEMISTRY Chapter 10 CH4 +X CHrx+ ch,X2+ chX or nv XEF C + CX+HX or Br Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 10 CH4 + X2 or hv ∆ CH3X + CH2X2 + CHX3 + CX4 + HX X= F, Cl, or Br
ORGANIC CHEMISTRY Chapter 10 10.3A Multiple substitution reactions Versus Selectivity CH CI CH CH CH2CHCH CH3 CHCH2CI CH3 CCH3 48 29% polychlorinated products +hCI 23% Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 10 10.3A Multiple Substitution Reactions Versus Selectivity CH3CHCH3 CH3 Cl2 hv CH3CHCH2Cl CH3 CH3CCH3 CH3 Cl + + polychlorinated products + HCl 48% 29% 23%
ORGANIC CHEMISTRY Chapter 10 10.4 Chlorination of methane Mechanism of reaction Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 10 10.4 Chlorination of Methane: Mechanism of Reaction
ORGANIC CHEMISTRY Chapter 10 Mechanism hy 2Cl· Chain Initiation CH 4 cl CH2 Hc Chain CH3 F Cl2-CH3CI Cl)Propagation C1·+Cl CH3+“CH Ch2 ch Chain Termination CH3·+C1 CH2C Department of Chemistry, Xiamen University
ORGANIC CHEMISTRY Department of Chemistry, Xiamen University Chapter 10 Mechanism Mechanism hv CH4 + Cl CH3 ＋ HCl CH3 ＋ Cl2 CH3Cl ＋ Cl Cl ＋ Cl CH3 ＋ CH3 CH3 ＋ Cl Chain Initiation Chain Propagation Chain Termination Cl2 2Cl Cl2 CH3CH3 CH3Cl