期刊
JOURNAL OF SOLID STATE CHEMISTRY
卷 269, 期 -, 页码 167-174出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jssc.2018.09.028
关键词
MnO2 doped MgO nanocomposites; Solvent free condition; E-ethyl cinnamate; Complementary promotional effect
资金
- UGC
For synthesis of flavoring agent E-ethyl cinnamate in an economic way using Wittig reaction, MnO2 doped MgO nanocomposites were prepared by alkali leached hydrothermal method. The resultant nanocomposites were characterized by XRD, UV-DRS, FT-IR, FESEM, EDAX, XPS and Hammett indicator method. This surface modified MnO2 doped MgO can be used as green solid base for Wittig reaction between benzaldehyde and phosponium salt for synthesis of E-ethyl cinnamate under solvent free approach. Nanocomposite of MgO with MnO2 in combination with green mechanochemical approach seems to be more economic in comparison to pure nanosized MgO under conventional solvent stirring. Both efforts are complementary for promoting surface basic activity of MgO for high-yield synthesis of E-ethyl cinnamate using Wittig reaction. The product ethyl cinnamate has been characterized by HR-MS, IR, H-1 NMR.
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