Kinetic vs.Thermodynamic Control (80%)H2C-CH-CH-CH2 (1,2-product) H Br -80C (20%)H,C一CH=CH一CH (1,4-product) HBr H Br × /40rc H2C=CH-CH=CH2 (15%) H,C-CH-CH=CH2 (1,2-product) 40C H Br (85%)H,C一CH=CH一CH2 (1,4-product) H Br Kinetic vs. Thermodynamic Control