Practical synthesis of new beta-diketone-connected bipyridine and its conversion to pyrazole-centered bipyridine ligand
2007 (English)In: Synthetic Communications, ISSN 0039-7911, E-ISSN 1532-2432, Vol. 37, no 19-21, 3393-3402 p.Article in journal (Refereed) Published
Two new polydentate ligands, 1-(6-hydroxymethyl-2-pyridyl)-3-(2-pyridyl)-propane-1,3-dione (6) and 1,3-bis(6-hydroxymethyl-2-pyridyl)-propane-1, 3-dione (8), have been synthesized starting from 2,6-pyridinedicarboxylic acid by conventional esterification, reduction, and condensation reactions. They were further converted to two new polydentate ligands, 3-(6-hydroxymethyl-2-pyridyl)-5-(2-pyridyl)-1H-pyrazole (7) and 3,5-bis(6-hydroxymethyl-2-pyridyl)-1H-pyrazole (9), by reaction with hydrazine hydrate. These four compounds were characterized by proton nuclear magnetic resonance (H-1 NMR), electrospray ionization-mass spectrum (ESI-MS), infrared spectrum (IR), and elemental analyses. The structure of 9 was also determined by X-ray diffraction.
Place, publisher, year, edition, pages
2007. Vol. 37, no 19-21, 3393-3402 p.
crystal structure, polydentate ligands, pyrazole derivatives, synthesis, water-oxidation, complexes, catalysts
IdentifiersURN: urn:nbn:se:kth:diva-17098DOI: 10.1080/00397910701487408ISI: 000250737500013ScopusID: 2-s2.0-35148889190OAI: oai:DiVA.org:kth-17098DiVA: diva2:335141
QC 201005252010-08-052010-08-05Bibliographically approved