The author of 《Synthesis, spectral properties and corrosion inhibition efficiency of new ethyl hydrogen [(methoxyphenyl) (methylamino) methyl] phosphonate derivatives: Experimental and theoretical investigation》 were Djenane, Meriem; Chafaa, Salah; Chafai, Nadjib; Kerkour, Rachida; Hellal, Abdelkader. And the article was published in Journal of Molecular Structure in 2019. Reference of 2-Methoxybenzaldehyde The author mentioned the following in the article:
Two new α-aminophosphonic acids, Et H [(2-methoxyphenyl)(methylamino) Me]phosphonate (2-EHMAP) and Et H [(3-methoxyphenyl)(methylamino) Me]phosphonate (3-EHMAP) were synthesized by the reaction between Methylamine, 2- or 3-Methoxybenzaldehyde and Diethylphosphite in THF solution with FeCl3. The structures of the title compounds were determined by UV-visible, FTIR, 1H, 13C, 31P NMR and MS spectra and confirmed by centesimal anal. Their inhibition efficiency on the corrosion of mild steel in 1 M HCl and 0.5M H2SO4 solutions was studied by weight loss, polarization curves and electrochem. impedance spectroscopy (EIS). The surface morphol. of XC38 simple was studied by SEM and Atomic Force Microscopy (AFM). Both mols. are mixed inhibitors and that their adsorptions on the surface of mild steel obey the Langmuir isotherm and that the 2-EHMAP exhibit better inhibition efficiency. Quantum chem. calculations were performed by using DFT to study the influence of mol. structure on the inhibition efficiency; theor. findings are in good accord with the exptl. observations. In the part of experimental materials, we found many familiar compounds, such as 2-Methoxybenzaldehyde(cas: 135-02-4Reference of 2-Methoxybenzaldehyde)
2-Methoxybenzaldehyde(cas: 135-02-4) is used as a flavor agent in foods including nonalcoholic/alcoholic beverages, baked goods, chewing gum, confections, frozen dairy, fruit ices, hard/soft candy, instant coffee, tea, Jams, jellies, and milk products. It also has been used to obtain good enantioselectivities using Cu(OAc)(2)-bis(oxazolines) via hydrogen bonding in asymmetric Henry reaction.Reference of 2-Methoxybenzaldehyde
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem