Kinetic study of the reaction between sodium ethyl xanthogenacetate and alkylamine
Апстракт
In this paper the kinetics of the reaction between sodium ethyl xanthogenacetate (NaEtXAc) and six amines was investigated. In order to determine the wavelength for following the reaction, the influence of the structures of reactants on the absorption (at 280 nm) was investigated. The values of rate constants for selected amines, at different temperatures were determined. It was confirmed that the reactions investigated are of the second-order. On the basis of the reaction rate constants and at the different temperatures, several thermodynamic parameters were calculated such as the energy of activation, the frequency factor, the activation entropy, Gibb's free-energy of the activation and the activation enthalpy. By evaluating the obtained results some assumptions that refer to the reaction mechanisms of nucleophilic attack of amine on the thiocarbonyl carbon, as well as forming of an activated complex as a critical step, were made.
Кључне речи:
sodium ethyl xanthogenacetate / primary and secondary alkylamines / reaction rate constants / thermodynamic parametersИзвор:
CICEQ - Chemical Industry and Chemical Engineering Quarterly, 2007, 13, 4, 175-178Издавач:
- Savez hemijskih inženjera, Beograd
Институција/група
PharmacyTY - JOUR AU - Milosavljević, Milutin AU - Đorđević, Siniša AU - Ražić, Slavica PY - 2007 UR - https://farfar.pharmacy.bg.ac.rs/handle/123456789/925 AB - In this paper the kinetics of the reaction between sodium ethyl xanthogenacetate (NaEtXAc) and six amines was investigated. In order to determine the wavelength for following the reaction, the influence of the structures of reactants on the absorption (at 280 nm) was investigated. The values of rate constants for selected amines, at different temperatures were determined. It was confirmed that the reactions investigated are of the second-order. On the basis of the reaction rate constants and at the different temperatures, several thermodynamic parameters were calculated such as the energy of activation, the frequency factor, the activation entropy, Gibb's free-energy of the activation and the activation enthalpy. By evaluating the obtained results some assumptions that refer to the reaction mechanisms of nucleophilic attack of amine on the thiocarbonyl carbon, as well as forming of an activated complex as a critical step, were made. PB - Savez hemijskih inženjera, Beograd T2 - CICEQ - Chemical Industry and Chemical Engineering Quarterly T1 - Kinetic study of the reaction between sodium ethyl xanthogenacetate and alkylamine VL - 13 IS - 4 SP - 175 EP - 178 DO - 10.2298/CICEQ0704175M ER -
@article{ author = "Milosavljević, Milutin and Đorđević, Siniša and Ražić, Slavica", year = "2007", abstract = "In this paper the kinetics of the reaction between sodium ethyl xanthogenacetate (NaEtXAc) and six amines was investigated. In order to determine the wavelength for following the reaction, the influence of the structures of reactants on the absorption (at 280 nm) was investigated. The values of rate constants for selected amines, at different temperatures were determined. It was confirmed that the reactions investigated are of the second-order. On the basis of the reaction rate constants and at the different temperatures, several thermodynamic parameters were calculated such as the energy of activation, the frequency factor, the activation entropy, Gibb's free-energy of the activation and the activation enthalpy. By evaluating the obtained results some assumptions that refer to the reaction mechanisms of nucleophilic attack of amine on the thiocarbonyl carbon, as well as forming of an activated complex as a critical step, were made.", publisher = "Savez hemijskih inženjera, Beograd", journal = "CICEQ - Chemical Industry and Chemical Engineering Quarterly", title = "Kinetic study of the reaction between sodium ethyl xanthogenacetate and alkylamine", volume = "13", number = "4", pages = "175-178", doi = "10.2298/CICEQ0704175M" }
Milosavljević, M., Đorđević, S.,& Ražić, S.. (2007). Kinetic study of the reaction between sodium ethyl xanthogenacetate and alkylamine. in CICEQ - Chemical Industry and Chemical Engineering Quarterly Savez hemijskih inženjera, Beograd., 13(4), 175-178. https://doi.org/10.2298/CICEQ0704175M
Milosavljević M, Đorđević S, Ražić S. Kinetic study of the reaction between sodium ethyl xanthogenacetate and alkylamine. in CICEQ - Chemical Industry and Chemical Engineering Quarterly. 2007;13(4):175-178. doi:10.2298/CICEQ0704175M .
Milosavljević, Milutin, Đorđević, Siniša, Ražić, Slavica, "Kinetic study of the reaction between sodium ethyl xanthogenacetate and alkylamine" in CICEQ - Chemical Industry and Chemical Engineering Quarterly, 13, no. 4 (2007):175-178, https://doi.org/10.2298/CICEQ0704175M . .