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 agents bearing hydroxyphenyl, carboxylate or phosphinate groups; an unusual tricyclic bis-aminal intermediate hydrolyses in acidic media to yield a stable bicyclic amidine via an intramolecular hydride transfer mechanism.
S. de Angelis, A. Batsanov, T. J. Norman, D. Parker, K. Senanayake and J. Vepsalainen, J. Chem. Soc., Chem. Commun., 1995, 2361 DOI: 10.1039/C39950002361
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