S. Deangelis et al., CONFORMATIONALLY BIASED TRI-BASIC AND DI-BASIC 1,3,5-TRIAZACYCLOHEXYLLIGANDS, Journal of the Chemical Society, Chemical Communications, (22), 1995, pp. 2361-2363
The biased ligand cis-cis-2,4,6-trimethyl-1,3,5-triaminocyclohexane is
weakly basic and may be converted into di- and tri-basic complexing a
gents bearing hydyoxyphenyl, carboxylate or phosphinate groups; an unu
sual tricyclic bis-aminal intermediate hydrolyses in acidic media to y
ield a stable bicyclic amidine via an intramolecular hydride transfer
mechanism.