Novel carbonium ion rearrangement in the exo-tricyclo [4.2.1.02,5]non-3-ene series

Abstract

9) Mechanistic speculation on the origin of products obtained from 2-OBs is not warranted at this time, although it is reasonable to assume that 1-OAc and 3-OAc are formed after leakage to 9 from an ion originally generated by backside participation of the C-l-C-2 bond in the ionization step.