H/D Exchange Reaction of Cyclopropane Derivatives

The fragmentation properties of the product ions M+3+, M+3+ and M+3+ formed by ion-molecule reaction of four cyclopropane derivatives with the ion system of CD3OD were investigated by using collision-induced dissociation technique. The experiment results indicate that the product ions are produced via the H/D exchange reaction between reactants and reactive reagent ions of CD3OD. There are two exchangeable hydrogen atoms on the ring of compounds 1 and 2, and only one for compounds 3 and 4.