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Current Physical Chemistry

Editor-in-Chief

ISSN (Print): 1877-9468
ISSN (Online): 1877-9476

Research Article

A Comparative Study on the Thermal and Microwave-assisted Direct Esterification of Phenyl-H-phosphinic Acid - Modeling the Rate Enhancing Effect of MWs

Author(s): Gyorgy Keglevich*, Nora Z. Kiss and Zoltan Mucsi

Volume 6, Issue 4, 2016

Page: [307 - 311] Pages: 5

DOI: 10.2174/1877946806666161103142955

Abstract

Background: The theoretical background of MW-assisted reactions is in the focus these days.

Objective and Method: We wished to model the distribution of local overheatings (OHs) mathematically, and the rate enhancing effect of the OHs utilizing the Arrhenius equation. The model reaction was the esterification of phenyl-H-phosphinic acid with 15-fold butanol at 160 °C.

Results: The results of the modelling and predictions matched the experimental data revealing the MWassited esterification to be 2.71 time faster than the thermal reaction.

Conclusion: Our explanation for the beneficial effect of MW irradiation assuming local OHs may be modelled well, and is in accord with experimental data.

Keywords: Phenyl-H-phosphinic acid, esterification, microwave, local overheating, modeling, arrhenius equation.

Graphical Abstract

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