Unexpected condensation of 4,5-dimethyl-1,2-phenylenediamine with phthalaldehyde to 4,5-dimethyldiisoindolo[2,1-a:1,2-c]quinoxaline-1,8-dione initiated by NiII complexes
摘要:
The title condensation initiated by Ni-9(HOOCCMe3)(4)(mu(4)-OH)(3)(mu(3)-OH)(3)(OOCCMe3)(12) in toluene or NiCl2.6H(2)O in ethanol was studied, and the molecular structure of the product was found using X-ray diffraction.
The reaction of 4,5-dimethyl-1,2-phenylenediamine (1) with phthalaldehyde (2) in the presence of Ni-II complexes afforded 4,5-dimethyldiisoindolo[2,1-a:1,2-c]quinoxaline-1,8-dione (3), whose structure was established by X-ray diffraction analysis.