Reactions of ent-16- and ent-15-kaurenes with thallium(III) trinitrate and a sigmatropic rearrangement between the allylic nitrate products
Abstract
The formation of the allylic nitrates, (1b) and (2b), in the reactions of both ent-16-kaurene (1a) and ent-15-kaurene (2a) with thallium(III) trinitrate, and a [3,3]-sigmatropic rearrangement between (1b) and (2b), are reported.