The piperazines are a broad class of chemical compounds, many with important pharmacological properties, which contain a core piperazine functional group. 103-76-4, formula is C6H14N2O, Name is N-(2-Hydroxyethyl)piperazine. A form in which piperazine is commonly available industrially is as the hexahydrate, C4H10N2. 6H2O, which melts at 44 °C and boils at 125–130 °C. Product Details of C6H14N2O.
Katiyar, Jyoti Devi;Chattopadhyay, Subrata research published 《 Quantitative functionalization of chitosan using green and efficient azetidinium-amine reactions》, the research content is summarized as follows. Despite significant advances in the field, quant. post-polymer modification of chitosan, specifically attaching diverse hydrophobic moieties with exptl. predefined (via the ratio of reagents) degree of functionalization remain extremely challenging. In this context, we report our studies toward the use of green and efficient azetidinium-amine reactions to prepare a library of modified chitosan with a predefined degree of functionalization, with excellent conversion (>90%), atom economy and very low E-factor (<0.1). Initially six different azetidinium functionalized coupler mols., which contains azetidinium functionality attached with other defined target functionality (ranging from hydrophobic to hydrophilic) are synthesized. In the next stage the azetidinium functionalized coupler mols. are reacted with chitosan (both low mol. weight and high mol. weight chitosans are used) in presence of 1,4-diazabicyclo[2.2.2]octane(DABCO, as base) using water as solvent and the other functional moiety are attached with the chitosan backbones. The degree of functionalization was calculated using 1H NMR and excellent match (80-100%) was noted between calculated degree of functionalization and feed ratio of the reagents used (exptl. defined ratio).
Product Details of C6H14N2O, 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, 103-76-4.
Referemce:
Piperazine – Wikipedia,
Piperazines – an overview | ScienceDirect Topics