A laser flash photolysis study has been carried out to assess solvent effects on the O-neophyl rearrangement of 1,1-diarylalkoxyl radicals. The rearrangement rate constant k decreases by increasing solvent polarity and an excellent correlation with negative slope is obtained between log k and the solvent polarity parameter E-T(N). These evidences are in full agreement with the previous indication that the extent of internal charge separation decreases on going from the starting 1,1-diarylalkoxyl radical to the transition state.
Bietti, M., Salamone, M. (2005). Solvent effects on the o-neophyl rearrangement of 1,1-diarylalkoxyl radicals. A laser flash photolysis study. JOURNAL OF ORGANIC CHEMISTRY, 70(25), 10603-10606 [10.1021/jo0518755].
Solvent effects on the o-neophyl rearrangement of 1,1-diarylalkoxyl radicals. A laser flash photolysis study
BIETTI, MASSIMO;SALAMONE, MICHELA
2005-01-01
Abstract
A laser flash photolysis study has been carried out to assess solvent effects on the O-neophyl rearrangement of 1,1-diarylalkoxyl radicals. The rearrangement rate constant k decreases by increasing solvent polarity and an excellent correlation with negative slope is obtained between log k and the solvent polarity parameter E-T(N). These evidences are in full agreement with the previous indication that the extent of internal charge separation decreases on going from the starting 1,1-diarylalkoxyl radical to the transition state.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
