Abstract
A rapid and efficient protocol assisted by microwave irradiation for the synthesis of esters using methanesulfonic acid (CH3SO3H) supported on Al2O3 (AMA) as catalyst and free of solvent is described. The products were obtained in good yields and purity, with reduced reaction time, and the process is simple and environmentally benign.
GRAPHICAL ABSTRACT
![](/cms/asset/e3077ac8-0036-45b5-b206-e5db28e71e05/lsyc_a_875210_o_uf0001.gif)
ACKNOWLEDGMENT
We thank SANICO S.A.I.&C. (Argentina) because it allocated the Anton Parr Monowave 300 reactor to check the first reactions developed in this study.
Notes
Note. Yields correspond to isolated yield. All compounds were fully characterized by 1H and 13CNMR spectra.
a NMR spectra are in accordance with those reported in NMR Catalogues: Poucher and Campbell, Aldrich Library of NMR Spectra Aldrich NMR Library, and Aldrich Spectral Viewer v 1.1.10.
b NMR spectra are in accordance with those reported in the Spectral Database for Organic Compounds, SDBS, by National Institute of Advanced Industrial Science and Technology (AIST), Japan.
c WSS, spectral data were obtained from Wiley Subscription Services, Inc. (US).
d Diester derivatives.
Note. All compounds were fully characterized by 1H and 13CNMR spectra.
a Diester derivatives.