Synthesis and characterization of two organic cation hydrogensulfates: 1-(2,5-dimethylphenyl)piperazine-1,4-diium bis(hydrogensulfate) monohydrate (SI) and 1-(2,3-dimethylphenyl)piperazine-1,4-diium bis(hydrogensulfate) (SII)
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DOI: 10.1016/j.molstruc.2016.12.099
Abstract: Abstract Treatment of 1-(2,5-dimethylphenyl)piperazine and 1-(2,3-dimethylphenyl)piperazine with H2SO4 in 2:1 molar ratio at RT affords the corresponding sulfate salts [C12H20N2][HSO4]2·H2O (SI) and [C12H20N2][HSO4]2 (SII). These compounds have been characterized by X-ray diffraction, thermal analysis and… read more here.
Keywords: diium bis; dimethylphenyl piperazine; bis hydrogensulfate; piperazine diium ... See more keywords
Introduction of piperazine-1,4-diium dihydrogen phosphate as a new and highly efficient dicationic brönsted acidic ionic salt for the synthesis of (thio)barbituric acid derivatives in water
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DOI: 10.1016/j.molstruc.2018.10.053
Abstract: Abstract A new piperazine-based dicationic Bronsted acidic ionic salt named as piperazine-1,4-diium dihydrogen phosphate was prepared. After characterization by FT-IR, Mass and NMR spectroscopy, it was used as an efficient and reusable catalyst for the… read more here.
Keywords: ionic salt; diium dihydrogen; acidic ionic; piperazine diium ... See more keywords
1H,4H-Piperazine-diium Dichlorosulfonate: Structure Elucidation and its Dual Solvent–Catalyst Activity for the Synthesis of New Dihydro-[1,2,4]triazolo[1,5-a]pyrimidine Scaffolds
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DOI: 10.1071/ch20022
Abstract: A new ionic liquid containing a 1H,4H-piperazine-diium ring and chlorosulfonate as a 1,4-dicationic core and counter ion, respectively, was designed and synthesised. The structure elucidation of this ionic liquid was conducted by 1D and 2D… read more here.
Keywords: solvent catalyst; ionic liquid; piperazine diium; structure elucidation ... See more keywords