A new protocol for the Knoevenagel condensation between β-diketones and aliphatic and aromatic aldehydes promoted by Mg(ClO4)2 under mild conditions is reported.
Some co-ordination polymers prepared from bis-(β-diketones)
作者:J.S. Oh、John C. Bailar
DOI:10.1016/0022-1902(62)80198-5
日期:1962.12
A series of metal ion-bis-(β-diketone) polymers containing beryllium, copper(II), nickel(II), zinc(II) or cobalt(II) have been prepared by four different methods. Three types of structures are postulated on the basis of elementary analysis of the polymers.
Syntheses, solvatochromism, and antimicrobial activities of new binuclear copper(II) mixed-ligand complexes in a ternary system with <i>β</i>-diketones and diamine ligands
作者:A.A. Abou-Hussein、Nelly H. Mahmoud、Wolfgang Linert
DOI:10.1080/00958972.2011.602402
日期:2011.8.10
investigated by elemental analysis, spectroscopic, magnetic, molar conductance, and thermal analysis. Solvatochromism was observed for only three complexes where they displayed a drastic color change with increasing donor strength of the solvent. This behavior is due to the solute–solvent interaction between the chelate cation and the solvent. Spectroscopicstudies of the complexes implicate tetragonal