K. Oyaizu et al., Copper(II) complexes resulting from the oxygenation of (2,9-dimethyl-1,10-phenanthroline)copper(I) chloride in the presence of dimethylformamide, B CHEM S J, 74(5), 2001, pp. 869-870
The oxygenation of (2,9-dimethyl-1,10-phenanthroline)copper(I) chloride in
THF, followed by a treatment with DMF and acidification with HCl, afforded
dichloro[2-(dimethylamino) (hydroxy)methyl-9-methyl-1,10-phenanthroline] co
pper(LI) and (aqua)dichloro(2,9-dimethyl-1,10-phenanroline)copper(II) quant
itatively.