503536-57-0Relevant academic research and scientific papers
Reactions of pyrrole-2,5-dicarbaldehyde with 2-aminodiphenylamine in the presence of nickel and cobalt trimethylacetates
Chernyadyev,Ustynyuk,Aleksandrov,Sidorov,Novotortsev,Ikorskii,Nefedov,Eremenko,Moiseev
, p. 1575 - 1580 (2002)
The reactions of pyrrole-2,5-dicarbaldehyde (1) with 2-aminodiphenylamine (3) taken in a ratio of 1:2 in the presence of polinuclear nickel(II) and cobalt(II) trimethylacetate complexes were studied in MeCN. The reaction with Ni9(HOOCCMe3)4(μ4-OH) 3(μ3-OH)3(OOCCMe3)12 (2) afforded the mononuclear complex Ni(OOCCMe3) 2[(PhHN)C6H4NHCHC4H 2NCHNC6H4(NHPh)] (4) with a new ligand, which is the product of condensation of one molecule 1 with two molecules 3 and contains two NHPh groups. By contrast, the reaction with the polymeric complex [Co(OH)n(OOCCMe3)2-n]x (5, n = 0.05-0.1) gave rise to the tetranuclear complex Co4(μ 4-O)(μ-OOCCMe3)4L2 (6), where L is, apparently, the product of further oxidation of Schiff's base to the benzimidazole derivative. The structures of compounds 4 and 6 were established by X-ray diffraction analysis.
