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Kinetic study of benzyl sulfamide synthesis by thermolysis of N-(benzyl)-N´-(tert-butoxycarbolyl) sulfamide | Gavernet | European Journal of Chemistry

Kinetic study of benzyl sulfamide synthesis by thermolysis of N-(benzyl)-N´-(tert-butoxycarbolyl) sulfamide

Luciana Gavernet, Maria Luisa Villalba, Luis Bruno Blanch, Ileana Daniela Lick

Abstract


In this investigation, a kinetic study of the thermolysis of N-(benzyl)-N´-(tert-butoxycarbonyl) sulfamide to yield benzylsulfamide in an efficient manner was performed. The thermolysis reaction was monitored in helium flow by thermogravimetry at different heating rates between 0.2 and 10 oC/min. The activation energy value was obtained from the Kissinger-Akahira-Sunose isoconversional method and theoretical calculations (from Transition State Theory). The reaction model of the process was studied by means of the master-plot method. Results obtained from experiments of thermolysis performed under the melting point temperature of N-(benzyl)-N´-(tert-butoxycarbonyl) sulfamide fit with an Avrami-Erofeev model whereas data found for experiments at higher temperatures fit with first order model. Isothermal experiments were simulated at 115, 120 and 130 oC using the model-free method, employing only the activation energy value.

4_1_44_48

Keyword(s)


Sulfamides; Kinetic study; Benzylsulfamide; Model-free method; Thermolysis reaction; Isoconversional method

European Journal of Chemistry, 4 (1), (2013), 44-48

Full Text:

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DOI: http://dx.doi.org/10.5155/eurjchem.4.1.44-48.717


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