Synthesis of ethyl-6-aminohexanoate from caprolactam and ethanol in near-critical water
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Zhi Hou
,
Li Luo
Abstract
The reaction between caprolactam and ethanol was performed in near-critical water. The primary product (ethyl-6-aminohexanoate) was identified by GC-MS. The influences of the reaction temperature, residence time, initial ratio (reactant/water), pH, and additives on the yields of ethyl-6-aminohexanoate are discussed. The results showed that the yield of ethyl-6-aminohexanoate could be as high as 98 % with SnCl2 as an additive in near-critical water. At the same time, the reaction between caprolactam and ethanol was estimated by a lumped kinetic equation as a second-order reaction in near-critical water, and the activation energy was evaluated according to the Arrhenius equation under acidic and basic conditions. Based on the results, the reaction mechanism between caprolactam and ethanol in near-critical water is proposed.
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Artikel in diesem Heft
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- Synthesis of ethyl-6-aminohexanoate from caprolactam and ethanol in near-critical water
- Vanadium dodecylamino phosphate: A novel efficient catalyst for synthesis of polyhydroquinolines
- Modelling and experimental validation of enantioseparation of racemic phenylalanine via a hollow fibre-supported liquid membrane
- Influence of operating conditions on performance of ceramic membrane used for water treatment
- Mercury associated with size-fractionated urban particulate matter: three years of sampling in Prague, Czech Republic
- Chemical composition and antioxidant activity of sulphated polysaccharides extracted from Fucus vesiculosus using different hydrothermal processes
- A new organically templated magnesium sulfate: structure, spectroscopic analysis, and thermal behaviour
- Synthesis, characterization and photoluminescence properties of Ce3+-doped ZnO-nanophosphors
- Synthesis and photophysical properties of new Ln(III) (Ln = Eu(III), Gd(III), or Tb(III)) complexes of 1-amidino-O-methylurea
- Polycarbonate-based polyurethane elastomers: temperature-dependence of tensile properties
- Synthesis of a disulfide functionalized diacetylenic derivative of carbazole as building-block of polymerizable self-assembled monolayers
- Properties of poly(lactic acid-co-glycolic acid) film modified by blending with polyurethane
- Determination of 10B in lymphoma human cells after boron carrier treatment: comparison of 10BPA and immuno-nanoparticles
- Molecular modelling and spectral investigation of some triphenyltetrazolium chloride derivatives
- X-ray molecular structure and theoretical study of 1,4-bis[2-cyano-2-(o-pyridyl)ethenyl]benzene
- 1,3-Dipolar cycloaddition between substituted phenyl azide and 2,3-dihydrofuran
