The endo-?-(aminomethyl) bicyclo [3.3. l] nonan-3-ones 1-4 perties of 1-4 with those of the isochromophoric monofuncwith a primary, secondary, or tertiary amino group have been tional compounds 7-11 indicates that 1 and 2 form mixtures synthesized, and their tendency to form the corresponding with the tricyclic isomers 5 and 6, respectively, whereas 3 tricyclic amino carbinols has been investigated by theoretical and 4 show no interactions between ...