24773-78-2Relevant academic research and scientific papers
Electrochemical, magnetic, catalytic, DNA binding and cleavage studies of new mono and binuclear copper(II) complexes
Anbu,Kandaswamy
, p. 123 - 131 (2011)
A new class of mono [CuL] (1) and binuclear copper(II) complexes [Cu 2LB](ClO4)2 (2 and 3), where L (6,6-piprazine-1,4 diyl-dimethylene bis(4-methyl phenol) is a N 2O2 donor ligand and B is a N,N-dono
1,4-Bis(2-hydroxy-5-methylbenzyl)-piperazine
Kuppayee,Kumaran,Ponnuswamy,Kandaswamy,Violet, M. Jayanthi,Chinnakali,Fun, Hoong-Kun
, p. 2147 - 2149 (1999)
The title compound, C20H26N2O2, lies across a crystallographic inversion centre. The piperazine ring adopts a chair conformation. The molecules are stabilized by intramolecular O - H...N-type hydrogen bonds in a
Simple synthesized Mannich bases as ligands in Cu-catalyzed N-arylation of imidazoles in water
Zhu, Yefeng,Shi, Yixing,Wei, Yunyang
body text, p. 1009 - 1013 (2011/10/02)
1,4-Bis(2-hydroxy-5-methoxybenzyl)piperazine and its analogues were used as efficient ligands for CuI-catalyzed N-arylation of imidazoles with aryl halides in water under mild conditions (120 °C for 12 h) with 10 mol% of CuI, 20 mol% of the Mannich base, and two equivalents of KOH or K2CO 3 in the presence of 10 mol% phase transfer catalyst (n-Bu) 4NBr. A variety of products were synthesized in moderate to excellent yields using this inexpensive catalytic system. Springer-Verlag 2010.
Reaction on a solid surface - A simple, economical, and efficient Mannich reaction of azacrown ethers over graphite
Sharghi, Hashem,Khalifeh, Reza
, p. 426 - 434 (2008/09/20)
Graphite brings about a rapid Mannich reaction with a range of activated and unactivated phenolic compounds such as p-cresol and p-nitrophenol. The reactions are carried out with azacrown ether and paraformaldehyde in solvent-free conditions at 100 °C for 20-30 min. The graphite powder can be reused up to three times after simple washing with acetone.
New Mannich Base Ligands
Hodgkin, Jonathan H.
, p. 2371 - 2378 (2007/10/02)
A series of low-molecular-weight aminomethylphenol compounds have been synthesized as model analogues of new Cu2+ and Fe3+ chelating polymers.Preliminary colour tests with these two ions were used to indicate the structural features
