Armando J. D. Silvestre, José A. S. Cavaleiro, Artur M. S. Silva, Bernard Delmond and Claude Filliatre
Chemical transformations of 1,8-cineole into cineolic acid derivatives, including N-phenylimides 6, are reported; based on spectroscopic data the regioselectivity of some of the reactions and the heterocyclic ring conformation for each group of compounds have been established.