Coordination compounds of Cu(II) with the nitroxyl radical 2-acetyl-2,5,5-trimethyl-4-phenyl-3-imidazoline-3-oxide-1-oxyl thiosemicarbazone and its 1-hydroxy derivative
Formation of 2,3,6,8-tetraazabicyclo[3.2.1]oct-3-ene derivatives in reaction between 2-acyl-3-imidazoline 3-oxides and hydrazine and their oxidation to the corresponding nitroxyl radicals and 1,2,4-triazine 4-oxide