99.Transferts d'hydrogenes dans les cations radicaux ethylene-acetals derives de cyclopentanones et cyclohexanones

Article abstract of DOI:10.1002/hlca.19850680412

Hydrogen Transfer during Decompositions of Molecular Ions of Acetals Derived from Substituted Cyclopentanones and Cyclohexanones.The isomerisation process of ethylene-acetal radical ions of low internal energy has been reinvestigated in more detail .The ring contraction of cyclohexane derivatives into methylcyclopentanes is quite general for these ions.The relative rates of <1,n> H transfers to the C free resulting from C-C cleavage α to the acetal group plays the most important part in the mechanism.