Reactions of the ethyl radical I. Metathesis with unsaturated hydrocarbons

摘要: The kinetic study of the abstraction hydrogen atom from selected hydrocarbons by ethyl radical reveals a natural correspondence between molecular structure and reactivity. Values energy activation series n -heptane, 1-heptene 1-heptyne are distinct at 10·6 ± 0·4, 8·3 0·5 7·6 0·2 kcal mole -1 , respectively, illustrate activating influence bond multiplicity. group olefines: 1-heptene, 1-octene, cyclo hexene trans -4-octene appear to share common value for activation, within limits experimental error. frequency factor correspond closely numbers equivalent atoms in molecule hydrocarbons.