•
For use in synthesis of molecules with electroactive cavities, see (Ferrocenylmethyl)trimethylammonium iodide, 39399.•
The Ni(II) complex catalyzes the novel electrochemical reaction of epoxides with carbon dioxide to give good yields of cyclic carbonates: J. Chem. Soc., Chem. Commun., 43 (1995). A similar system catalyzes the electrochemical intramolecular reductive cyclization of a series of o-halogenated aryl alkenes: Tetrahedron Lett., 36, 4429 (1995):

• Complex with iron(II) triflate is an effective epoxidation catalyst: J. Am. Chem. Soc., 113, 7052 (1991).
• Nitrogen analogue of the crown ethers (see Appendix 2), forming stable complexes with metal ions: Inorg. Chem., 4,1102, 1109 (1965); Can. J. Chem., 48, 1481 (1970). For examples of use as a versatile ligand in coordination chemistry, see: Acc. Chem. Res., 11, 392 (1978); J. Chem. Soc., Chem. Commun., 1322 (1986); 1075 (1987); 156 (1988); Inorg. Chem., 26, 908 (1987); J. Am. Chem. Soc., 110, 3679 (1988).