1 7.32? 0.43 1500 4.13* 0.20 2000 3.54? 0.13 2500 3.13 i 0.22 3000 2.38 i 0.17 Singer2 obtained values of 8.0 X s-'(CCl,, 60" C) and 20 x ments to the substituted propanenitriles (2). 2 On the basis of the evidence presented below, it was concluded that these rearrangements 1-2 proceed via an intermediate geminate radical pair (Scheme I).(1) The rates of these reactions are not significantly affected by solvent polarity;(2) when Ar is pX- ...
