Ethyl cinnamate is a common chemical produced on a large scale by businesses. Although it is found naturally in a variety of plants, the expense of extraction and purification on a commercial basis is prohibitive. Acid and enzymatic esterification, as well as condensation using Na metal and strong bases under homogenous conditions, are being used to synthesise these compounds. On a commercial scale, these technologies are hampered by low yield, long reaction times, and pollution. It is critical to design a method for synthesis of ethyl cinnamate under heterogeneous conditions employing reactive catalytic systems to overcome these restrictions. Cu, Fe, and Mn doped nanocrystalline MgO was produced as heterogeneous basic catalysts in a one-pot Wittig reaction to create ethyl cinnamate utilising an alkali leached hydrothermal method. The basic catalysts are characterised using XRD, UV-DRS, FT-IR, FESEM, EDS, and XPS techniques. The catalytic activity of synthesised catalysts was evaluated in a one-pot Wittig reaction of benzaldehyde, triphenylphosphine, and ethyl bromoacetate in DMF solvent at room temperature. The Mn doped nanocrystalline MgO catalyst yields 98 percent under optimal reaction conditions. UV-DRS and XPS measurements revealed an increase in surface basicity due to Mn doping in MgO. The influence of transition metal doping, particle size, and morphology on surface basicity increase of nanocrystalline MgO in a one-pot Wittig reaction for green chemical synthesis of ethyl cinnamate was investigated in this study.
Author (S) Details
Mansur Moulavi
Department of Chemistry, PDEA’s Annasaheb Waghire College, Otur, Pune -412409, India.
Kaluram Kanade
Annasaheb Awate Arts, Commerce, Hutatma Babu Genu Science College, Manchar Pune-410503, India.
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