Answers are grounded in this paper and cite their sources.
Using EPR spectroscopy, β-fragmentation of the radicals PhCH2CH2ĊHX (R1, X = H; R2, X = CF3; R3, X = Me; R4 X = CO2Me) accompanied by C—C bond cleavage has been found and studied, and the activation energy of this reaction has been calculated, thus permitting us to determine the rate constants for fragmentation of R1 (k3a = 3.9( ± 0.2) × 104 s−1, R2 (k3b = 6.5( ± 0.4) × 103 s−1 and to evaluate the value of this rate constants for radical R3 and R4 (k3 = 102 s−1) at 22 °C.
No takes yet. Share an insight, caveat, or question.
Gasanov et al. (1991) studied this question.
Synapse has enriched 10 related papers. Consider them for comparative context: