Table 4.

Activation energies used for the decompositions by β-scission of oxygenated radicals.

Reaction class	Ea (kcal/mol)
	5.1a
	15.0 b
	24.0 b
	29.0 c
	26.0 d
	30.7 e
	31.9a
	34.9e
	39.9 f
	15.6 g
	49.0 e

^aNotes: CBS-QB3 [137] calculation performed for R^•= CH₃^•,

^bEstimated based on the kinetics of the reverse step of the addition of alkyl radical on a ketone, i.e. 10 kcal/mol according to Benson [126],

^cfrom Wilk et al. [138],

^dEstimated based on the kinetics of the reverse step of the for the addition of an alkoxy radical on an alkene, according to Choo et al. [131], R5 can be an H-atom.

^eTheoretical calculation performed for R^•= H^•,

^fTheoretical calculation performed for R^•= C₂H₅^•,

^gfrom Mereau et al. [139].