Betti Bases from 4‐(3‐Pyridazo)‐1‐naphthol: Synthesis, Coordination Behaviour and Unusual Substitution Reactions. Issue 43 (16th November 2018)

• Record Type: Journal Article
• Authors: Kurteva, Vanya B.; Lubenov, Lubomir A.; Shivachev, Boris L.; Nikolova, Rositsa P.; Fromm, Katharina M.
• Is Part Of: ChemistrySelect. Volume 3:Issue 43(2018)
• Page Start: 12017
• Page End: 12021
• Publication Date: 2018-11-16
• Subjects: 4-(3-pyridylazo)-1-naphthol -- Betti condensation -- 3-aminopyridine -- NMR -- XRD; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201802745
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: A series of Betti bases from 4‐(3‐pyridyl)azo‐1‐naphthol dye, possessing flexible methylene or more constrained aryl‐methyne spaced NH‐containing side‐chains, were obtained and characterized. It was shown by NMR spectroscopy that the ligands exist in keto form. The products' structure was confirmed by single crystal XRD of a selected sample. A study on the coordination ability of the ligands with silver(I) was performed, leading to an unexpected substitution reaction. Abstract : Synthesis, characterization and complexation ability study of a series of Betti bases from 4‐(3‐pyridyl)azo‐1‐naphthol dye, possessing flexible methylene or more constrained aryl‐methyne spaced NH‐containing side‐chains, is presented. An unexpected result with side‐chain pyridyl group replacement was obtained and the product was analysed by XRD. A possible pathway was suggested and synthetically confirmed.