Piperazine is an organic compound that consists of a six-membered ring containing two nitrogen atoms at opposite positions in the ring. 103-76-4, formula is C6H14N2O, Name is N-(2-Hydroxyethyl)piperazine. Piperazine exists as small alkaline deliquescent crystals with a saline taste. Category: piperazines.
Ranjan, Rishi;Kundu, Bidyut Kumar;Kyarikwal, Reena;Ganguly, Rakesh;Mukhopadhyay, Suman research published 《 Synthesis of Cu(II) complexes by N,O-donor ligand transformation and their catalytic role in visible-light-driven alcohol oxidation》, the research content is summarized as follows. Visible-light-driven photoreactions using metal complexes as catalysts are currently a research hotspot in terms of the development of environmentally friendly sustainable processes. To develop potential copper-based photocatalysts, a Mannich base ligand, namely, 2,4-dichloro-6-((4-(2-hydroxyethyl)piperazin-1-yl)methyl)phenol (H2L), was synthesized and characterized. Two copper complexes [Cu (HL1)] (1) and [Cu (HL2)] (2) were obtained from H2L, where the ligand undergoes an unprecedented transformation plausibly via oxidation of piperazine ring to ketone, subsequent oxidation of enol and nucleophilic attack of methanol followed by hydrolysis of amide bond, resulting piperazine ring cleavage. Under the irradiation of visible light, these catalysts can oxidize primary alcs. into corresponding aldehydes with very good conversion and high selectivity in the presence of mol. oxygen. The photocatalysts could be recovered almost quant. after completion of the catalytic cycle and recycled at least four times without much depreciation of catalytic activity. A plausible mechanistic pathway for alc. oxidation was explored through electrospray ionization mass spectrometry (ESI-MS) spectrometric, cyclic voltammetry, UV-visible, and computational study.
103-76-4, 1-(2-Hydroxyethyl)piperazine is a useful research compound. Its molecular formula is C6H14N2O and its molecular weight is 130.19 g/mol. The purity is usually 95%.
1-(2-Hydroxyethyl)piperazine is a chemical solvent that is used for the absorption of amines and other compounds. It has been shown to have a high affinity for acidic substances, which may be due to its ability to form hydrogen bonds with them. 1-(2-Hydroxyethyl)piperazine is also used in sample preparation for the analysis of amines and other compounds in fruit extracts. The solubility of 1-(2-Hydroxyethyl)piperazine depends on the experimental conditions, including pH, temperature, and pressure. FT-IR spectroscopy has been used to measure the vibrational modes of 1-(2-Hydroxyethyl)piperazine molecules. The IR spectrum revealed that this compound contains a hydroxyl group and two fatty acid chains with one or more hydroxyl groups at their terminal end. The nmr spectrum showed that 1-(2-Hydroxyethyl)piperazine contains an NH proton as well as, Category: piperazines
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics