Structure of a dihydroquinaldine dimer from electrolytic reduction was written by Elliott, I. W. Jr.;McCaskill, E. S.;Robertson, M. S.;Kirksey, C. H.. And the article was included in Tetrahedron Letters in 1962.Name: 3-(2,4-Dimethoxyphenyl)acrylic acid This article mentions the following:
Quinaldine in 10% alc. KOH reduced at a Hg cathode at 8 v. and current density 5.3 amp./sq. cm. for 4 hrs. at 15° (the cathode stirred magnetically and the anode compartment separated by a porous thimble) and the product isolated according to Levchenko (CA 43, 955g) gave I (a dihydroquinaldine dimer), C20H20N2, m. 138-40°, mol. weight 330 (Rast); diperchlorate, C20H22Cl2O8.0.5 H2O, m. 220-1°, spectra indicating enamine-iminium changes (Witkop, CA 50, 14595i). Details of infrared and nuclear magnetic resonance spectra, consistent with the given structure were tabulated. In the experiment, the researchers used many compounds, for example, 3-(2,4-Dimethoxyphenyl)acrylic acid (cas: 6972-61-8Name: 3-(2,4-Dimethoxyphenyl)acrylic acid).
3-(2,4-Dimethoxyphenyl)acrylic acid (cas: 6972-61-8) belongs to ethers. Of all the functional groups, ethers are the least reactive ones. Ether bonds are quite stable towards bases, oxidizing agents and reducing agents. But on the other hand, ethers undergo cleavage by reaction with acids. Ethers are good solvents partly because they are not very reactive. Most ethers can be cleaved, however, by hydrobromic acid (HBr) to give alkyl bromides or by hydroiodic acid (HI) to give alkyl iodides.Name: 3-(2,4-Dimethoxyphenyl)acrylic acid
Referemce:
Ether – Wikipedia,
Ether | (C2H5)2O – PubChem