Thermodynamic Control in Ion Radical Cleavages through Out-of-Cage Diffusion of Products. Dynamics of C−C Fragmentation in Cation Radicals of <i>tert</i>-Butylated NADH Analogues and Other Ion Radicals
alkyl group, cationradicals of NADHanalogues alkylated para to the nitrogen atom (AHR), generated by direct or indirect electrochemical means, may undergo C−C fragmentation or deprotonation. The former reaction is dominant with the tert-butyl substituent and the latter with methyl and phenyl substituents. It is shown that the cleavage reaction produces AH+ and the tert-butyl radical which is then